Yearly Archives: 2024

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Russian President Vladimir Putin said on the 13th that he would redeploy troops on the border between Russia and Finland in response to Finland’s accession to NATO, UPI reported on March 13.

Reported that Putin said in an interview with Russian state media that from the perspective of safeguarding national interests, the actions of Finland and Sweden are absolutely meaningless.

We used to have a good relationship with Finland on the whole, he said. It’s perfect. The two countries do not covet each other, especially territorial claims, let alone other areas. We didn’t even have troops at the border; we withdrew all our troops from the Finnish border.

But this is their decision, Putin said. Now that they have decided that we did not have troops there in the past, we will have them now.

It is reported that in 2022, shortly after Russia sent troops to Ukraine, Finland and Sweden applied to join NATO. Finland became a member of NATO in April last year, and Sweden did not formally join until last week because of opposition from Hungary and Turkey.

Putin’s remarks came after Finnish Prime Minister Peter Riolpo told the European Parliament in Strasbourg that other EU countries must follow Finland’s example and strengthen security in marginal areas. (compiled by Wang Dongdong)

Related news recommendations:

Putin warns the West: ready for nuclear war

Russian President Vladimir Putin has warned the West that Russia is technically ready for a nuclear war and that if the United States sends troops to Ukraine, it will be seen as a major escalation of the war, Reuters reported on March 13.

Putin accepted a joint interview with Russia-1 Channel and Russian News Agency on the 12th. The program about this interview was officially broadcast on the 13th.

In response to the question of whether Russia is really ready to fight a nuclear war, Putin said: from the perspective of military technology, we are certainly ready, the report said.

Putin pointed out that the United States understands that if it deploys US troops on Russian territory or in Ukraine, Russia will regard this as intervention. So while I don’t think it’s all in a hurry to [nuclear confrontation” target=_blank>, we are ready for it, he said.

The conflict in Ukraine triggered the most serious crisis in relations between Russia and the West since the Cuban missile crisis in 1962. Putin has repeatedly warned that if the West sends troops to fight in Ukraine, it could lead to a nuclear war.

In the interview, Putin reiterated that the use of nuclear weapons is something already stated in the Kremlin’s nuclear policy, which sets out the possible use of nuclear weapons by Russia.

Putin said: weapons exist to use them. We have our own principles.

The report also said that for the conflict in Ukraine, which has lasted for two years, Putin said that Russia is ready to hold serious talks on the Ukraine issue.

Putin said: Russia is ready to negotiate on Ukraine, but the negotiations should be based on reality, not on desire after the use of psychotropic substances.

Reuters reported last month that Putin’s proposal to cease fire in Ukraine to freeze the war was rejected by the United States after middlemen between Russia and the United States.

According to the report, he also said in an interview that if the United States conducts a nuclear test, Russia may do the same.

We may not have to consider this issue, but I do not rule out the possibility that we will do the same, he said. (compiled by Longjun)

　　The firefly q6 v3 action camera is well-regarded for its high-quality performance and versatility, largely thanks to its top-tier image sensor, the SONY IMX117. In this blog post, we will explore the features and benefits of the SONY IMX117 sensor, and how it enhances the Firefly Q6 V3’s capabilities for capturing stunning visuals.So, hawkeye action camera manufacturers On the contrary, there is still a lot of room to play. https://hawkeyecameras.com/

　　What is the SONY IMX117?

　　The SONY IMX117 is a high-performance image sensor known for its exceptional resolution, low light performance, and fast processing capabilities. It is widely used in various high-end action cameras, drones, and other imaging devices where superior image quality is a priority.

　　SONY IMX117: The Top-Level Image Sensor of the Firefly Q6 V3(夕1)

　　Key Features of the SONY IMX117 Sensor

　　1.High Resolution:

　　The SONY IMX117 offers a resolution of 12.4 megapixels, allowing the Firefly Q6 V3 to capture detailed and sharp images. This high resolution is perfect for producing high-definition videos and still photos that can be zoomed in without losing clarity.

　　2.Excellent Low Light Performance:

　　Low light conditions often challenge action cameras, but the IMX117 excels in these situations. With its advanced sensor technology, it can capture clear and bright images even in dim environments, making it ideal for night-time shooting or indoor activities.

　　3.Fast Processing Speed:

　　The IMX117 boasts a high-speed readout, enabling the Firefly Q6 V3 to shoot videos at high frame rates. This is crucial for recording smooth and fluid action scenes, whether you¨re filming sports events, outdoor adventures, or fast-moving subjects.

　　4.Wide Dynamic Range:

　　The sensor’s wide dynamic range allows it to handle high-contrast scenes effectively. It can capture both the bright and dark areas of a scene accurately, ensuring that details are preserved across the entire image, which is essential for producing balanced and professional-looking footage.

　　How the SONY IMX117 Enhances the Firefly Q6 V3

　　The integration of the SONY IMX117 sensor in the Firefly Q6 V3 elevates the camera¨s overall performance. Here¨s how it makes a difference:

　　1.Superior Video Quality:

　　With the IMX117, the Firefly Q6 V3 can record ultra-high-definition 4K videos at 30 frames per second, and 1080p videos at up to 120 frames per second. This ensures that your videos are crisp, clear, and highly detailed, suitable for professional use or high-quality content creation.

　　2.Improved Low Light Shooting:

　　Whether you’re filming at dawn, dusk, or indoors, the IMX117’s low light capabilities mean you can capture usable footage without the graininess often associated with low-light shooting. This is a significant advantage for vloggers, adventure seekers, and anyone who shoots in varying light conditions.

　　3.Reliable Performance in Action:

　　The high-speed processing of the IMX117 ensures that the Firefly Q6 V3 can keep up with fast-paced activities. Whether you’re skiing, biking, or engaging in extreme sports, the camera can record smooth and fluid motion, making sure you don¨t miss any action.

　　4.Versatility in Shooting Modes:

　　Thanks to the sensor¨s wide dynamic range and high resolution, the Firefly Q6 V3 offers various shooting modes, including time-lapse, slow motion, and burst mode. These features provide creative flexibility, allowing users to experiment with different filming techniques.

　　SONY IMX117: The Top-Level Image Sensor of the Firefly Q6 V3(夕2)

　　Real-World Applications

　　The combination of the Firefly Q6 V3 and the SONY IMX117 sensor makes it a formidable tool for various applications:

　　Sports Filming: Capture every moment in detail and fluidity, making it perfect for sports enthusiasts and filmmakers.

　　Travel Vlogging: Document your adventures with stunning clarity, regardless of the lighting conditions.

　　Wildlife Photography: The camera¨s fast processing and low light capabilities make it ideal for capturing elusive wildlife, even in challenging lighting.

　　Conclusion

　　The SONY IMX117 image sensor significantly enhances the firefly Q6 V3 action camera, making it a top choice for those seeking high-quality video and image capture. Its high resolution, excellent low light performance, fast processing speed, and wide dynamic range contribute to the camera¨s ability to deliver professional-grade footage in a variety of scenarios. Whether you’re an action sports enthusiast, a travel vlogger, or someone who simply wants the best in imaging technology, the Firefly Q6 V3 with its SONY IMX117 sensor is a worthy investment.

　　X-ray machines are mainly divided into medical X-ray machines, that is, medical X-ray machines, and the other type is the luggage X-ray machines that are most commonly used in stations, airports, customs and docks, so some people also call them X-ray luggage security inspection machines or security inspection X-ray machines. However, some people also have doubts: What is the difference between the two? Does security inspection X-ray machines have radiation hazards?Mentioned in the article walk through metal detector Born with strong vitality, you can turn a cocoon into a butterfly and become the best yourself after wind and rain. https://secuzoan.com/

　　security x-ray machines

　　ZA100100D

　　The principle of security inspection machine is similar to that of medical X-ray machine

　　The principle of medical X-ray machine and security inspection X-ray machine is the same. X-ray machine has three parts. One is the tube, which emits X-ray radiation source. X-ray can pass through the material to see things that our naked eyes cannot see with ordinary light. There must be a tube or X-ray. Second, there must be a high-voltage transformer. The high-voltage transformer converts the general voltage into high voltage, and then provides the tube to generate electrons and then generate X-rays. This is the second part. The third part is the controller, which means how much X-ray I need to release. There must be a control board. All X-ray machines cannot escape this, whether it is X-ray or CT. Although its structure is very complicated, its structure should be the same.

　　Security X-ray machines have less radiation

　　The use of security X-ray machines is to put the luggage into the item scanning X-ray machine. After the inspection is completed, the passenger can take back his luggage and leave. The X-ray machine used for item inspection uses X-rays to pass through the object to obtain X-ray images, which are processed by computers and displayed on the computer screen to identify the image and evaluate the safety of the object. Although the principle is similar to the human body X-ray examination in the hospital, Professor Li Ziping believes that the dose of security X-ray machines should be less than the amount of X-rays irradiated to the human body. Because the security X-ray machine only needs to see the general shape of the object. Medical X-ray machines need to see the human body very clearly, so the radiation dose is greater.

　　Therefore, there is no need to worry too much about the radiation problem of security X-ray machines. In addition, whether the radiation of security X-ray machines has an impact on the human body depends on the amount of radiation received at one time, the total amount of radiation received, the radiation time, and the human body’s regulation of these radiations. Moreover, even if the security inspection machine leaks due to quality problems, it may have an impact on the staff who work nearby for a long time, but it will not have much impact on people who pass by. It is understood that the country implements a licensing management system for the use of nuclear technology. X-ray baggage inspection equipment is a Class III radiation device, which is a low-risk radiation device.

　　In the intricate world of injection molding, precision components play a critical role in determining the quality and functionality of the final products. One such essential component is the mold core pin. Understanding the purpose and application of mold core pins is vital for anyone involved in manufacturing, from engineers to suppliers. In this article, we will explore the uses of mold core pins, with a focus on core pin injection molding, and discuss the importance of sourcing from reliable mold core pins suppliers and factories.in fact plastic moulding parts It is more and more welcomed by our customers, and its market performance is gradually improving. https://www.dghrjmmj.com

　　What Are Mold Core Pins?

　　Mold core pins are specialized components used in the injection molding process. These pins are inserted into the mold to create precise internal features in the molded parts. They come in various sizes and shapes, depending on the design requirements of the product. Typically made from hardened steel or other durable materials, mold core pins are designed to withstand the high pressures and temperatures involved in the injection molding process.

　　Applications of Mold Core Pins in Injection Molding

　　1. Creating Internal Cavities and Holes

　　One of the primary uses of mold core pins is to create internal cavities and holes within the molded parts. These pins ensure that the internal features are accurately formed, meeting the specific design and functional requirements of the product. For instance, in the manufacturing of medical devices, mold core pins are used to create precise channels and openings necessary for the device’s functionality.

　　2. Supporting Complex Geometries

　　Mold core pins are essential for supporting complex geometries in injection-molded parts. When a product design includes intricate details, such as undercuts or threaded sections, mold core pins help in accurately forming these features. By doing so, they enhance the structural integrity and performance of the final product.

　　3. Enhancing Product Quality

　　The use of high-quality mold core pins directly impacts the quality of the molded parts. Precision in creating internal features ensures that the parts fit together correctly and function as intended. This is particularly important in industries such as automotive and aerospace, where even the slightest deviation can lead to significant issues.

　　Importance of Reliable Mold Core Pins Suppliers and Factories

　　1. Consistency and Precision

　　Working with a reputable mold core pins supplier ensures that the pins you receive are consistent in quality and precision. Reliable suppliers adhere to stringent manufacturing standards, ensuring that each pin meets the required specifications. This consistency is crucial for maintaining the integrity of your injection molding processes and the quality of your final products.

　　2. Customization and Expertise

　　A trusted mold core pins factory can provide customized solutions tailored to your specific needs. They have the expertise to design and manufacture core pins that fit your unique requirements, whether it’s for a specialized application or a high-volume production run. Their knowledge and experience can help you optimize your injection molding process, leading to better product outcomes.

　　3. Material and Durability

　　High-quality mold core pins are made from durable materials that can withstand the demands of the injection molding process. Suppliers who prioritize material quality ensure that their pins are resistant to wear, corrosion, and deformation. This durability translates to longer tool life and reduced downtime, ultimately saving costs and improving efficiency.

　　Mold core pins are indispensable components in the injection molding process, playing a crucial role in creating precise internal features and supporting complex geometries. Their importance extends beyond their functional role, impacting the overall quality and performance of molded products. By partnering with reliable mold core pins suppliers and factories, manufacturers can ensure consistency, precision, and durability in their injection molding operations. Whether you are a seasoned engineer or new to the field, understanding the uses and benefits of mold core pins is essential for achieving excellence in manufacturing.

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According to a report by the Hindustan Times on March 12, a Shine fighter jet of the Indian Air Force crashed near Jaysermer during a combat flight training on the 12th. The pilot ejected and escaped before the crash.

The Indian Air Force said in a statement: During today’s combat flight training, an Indian Air Force Shine fighter plane encountered an accident in Jaysermer. Pilot ejected safely (escape). The Indian Air Force has established a court of inquiry to find out the cause of the accident.

According to Reuters, this was the first such crash since the Korn fighter jet was installed in the Indian Air Force in 2016. An Indian Air Force officer told Reuters that the crash on the 12th broke the aircraft’s safe flight record since its first test flight more than 20 years ago.

The Hindustan Times reported that the Shining Fighter is an Indian-made supersonic aircraft. In 1984, the light fighter plan proposed by the Indian government prompted India to establish the Aviation Development Authority to take charge of its research and development. Hindustan Aviation Limited leads the design and development of this aircraft. (Compiled by Xu Yanhong)

　　The firefly q6 v3 action camera is well-regarded for its high-quality performance and versatility, largely thanks to its top-tier image sensor, the SONY IMX117. In this blog post, we will explore the features and benefits of the SONY IMX117 sensor, and how it enhances the Firefly Q6 V3’s capabilities for capturing stunning visuals.However, with the development of the industry, firefly sports camera It will also bring us more and more consumer experiences, so that users can really feel the upgrade and change. https://hawkeyecameras.com/

　　What is the SONY IMX117?

　　The SONY IMX117 is a high-performance image sensor known for its exceptional resolution, low light performance, and fast processing capabilities. It is widely used in various high-end action cameras, drones, and other imaging devices where superior image quality is a priority.

　　SONY IMX117: The Top-Level Image Sensor of the Firefly Q6 V3(夕1)

　　Key Features of the SONY IMX117 Sensor

　　1.High Resolution:

　　The SONY IMX117 offers a resolution of 12.4 megapixels, allowing the Firefly Q6 V3 to capture detailed and sharp images. This high resolution is perfect for producing high-definition videos and still photos that can be zoomed in without losing clarity.

　　2.Excellent Low Light Performance:

　　Low light conditions often challenge action cameras, but the IMX117 excels in these situations. With its advanced sensor technology, it can capture clear and bright images even in dim environments, making it ideal for night-time shooting or indoor activities.

　　3.Fast Processing Speed:

　　The IMX117 boasts a high-speed readout, enabling the Firefly Q6 V3 to shoot videos at high frame rates. This is crucial for recording smooth and fluid action scenes, whether you¨re filming sports events, outdoor adventures, or fast-moving subjects.

　　4.Wide Dynamic Range:

　　The sensor’s wide dynamic range allows it to handle high-contrast scenes effectively. It can capture both the bright and dark areas of a scene accurately, ensuring that details are preserved across the entire image, which is essential for producing balanced and professional-looking footage.

　　How the SONY IMX117 Enhances the Firefly Q6 V3

　　The integration of the SONY IMX117 sensor in the Firefly Q6 V3 elevates the camera¨s overall performance. Here¨s how it makes a difference:

　　1.Superior Video Quality:

　　With the IMX117, the Firefly Q6 V3 can record ultra-high-definition 4K videos at 30 frames per second, and 1080p videos at up to 120 frames per second. This ensures that your videos are crisp, clear, and highly detailed, suitable for professional use or high-quality content creation.

　　2.Improved Low Light Shooting:

　　Whether you’re filming at dawn, dusk, or indoors, the IMX117’s low light capabilities mean you can capture usable footage without the graininess often associated with low-light shooting. This is a significant advantage for vloggers, adventure seekers, and anyone who shoots in varying light conditions.

　　3.Reliable Performance in Action:

　　The high-speed processing of the IMX117 ensures that the Firefly Q6 V3 can keep up with fast-paced activities. Whether you’re skiing, biking, or engaging in extreme sports, the camera can record smooth and fluid motion, making sure you don¨t miss any action.

　　4.Versatility in Shooting Modes:

　　Thanks to the sensor¨s wide dynamic range and high resolution, the Firefly Q6 V3 offers various shooting modes, including time-lapse, slow motion, and burst mode. These features provide creative flexibility, allowing users to experiment with different filming techniques.

　　SONY IMX117: The Top-Level Image Sensor of the Firefly Q6 V3(夕2)

　　Real-World Applications

　　The combination of the Firefly Q6 V3 and the SONY IMX117 sensor makes it a formidable tool for various applications:

　　Sports Filming: Capture every moment in detail and fluidity, making it perfect for sports enthusiasts and filmmakers.

　　Travel Vlogging: Document your adventures with stunning clarity, regardless of the lighting conditions.

　　Wildlife Photography: The camera¨s fast processing and low light capabilities make it ideal for capturing elusive wildlife, even in challenging lighting.

　　Conclusion

　　The SONY IMX117 image sensor significantly enhances the firefly Q6 V3 action camera, making it a top choice for those seeking high-quality video and image capture. Its high resolution, excellent low light performance, fast processing speed, and wide dynamic range contribute to the camera¨s ability to deliver professional-grade footage in a variety of scenarios. Whether you’re an action sports enthusiast, a travel vlogger, or someone who simply wants the best in imaging technology, the Firefly Q6 V3 with its SONY IMX117 sensor is a worthy investment.

　　Non-standard nuts have always been popular with users in the market. Because there is no fixed standard, non-standard nuts are customized according to customer needs and sizes. So what is the process of customizing non-standard nuts?As can be seen from the new data, non-standard fasteners price The market influence is also growing, and the product share is also relatively increasing, which has great potential in the future. https://jieruifasteners.com/

　　1. First of all, before customizing non-standard nuts, you should think about which product the non-standard nuts will be used on and what effect they will achieve on the product. Will they be injected into the product or will they serve as a connection between two products?

　　custom non standard nuts.jpg

　　2. Secondly, the appearance of non-standard nuts and the specifications, sizes, and patterns of non-standard nuts should be designed according to the needs of the product. The material and surface treatment of non-standard nuts should be determined in combination with the product and its use environment. Materials such as copper, iron, stainless steel, alloy, etc. Surface treatment processes such as galvanizing iron nuts or degreasing stainless steel nuts.

　　non standard fasteners.jpg

　　3. The drawings of non-standard nuts are generally designed by the demander, and the specifications, sizes and requirements of each part of the non-standard screws are marked on the drawings. If there is no drawing. As long as the product for non-standard nuts is provided, or the requirements for non-standard nuts are provided, the manufacturer can also design non-standard screws according to the actual situation.

　　nut mold supplier.jpg

　　4. After the drawing is designed, proofs are made according to the size and specifications of the nut. If there are no problems with the sample production, mass production will be carried out according to the requirements of the nut.

　　Non-standard nuts have always been popular with users in the market. Because there is no fixed standard, non-standard nuts are customized according to customer needs and sizes. So what is the process of customizing non-standard nuts?Today, people are interested in non standard fasteners There are also many dependencies, and the expectations for products are getting higher and higher. https://jieruifasteners.com/

　　1. First of all, before customizing non-standard nuts, you should think about which product the non-standard nuts will be used on and what effect they will achieve on the product. Will they be injected into the product or will they serve as a connection between two products?

　　custom non standard nuts.jpg

　　2. Secondly, the appearance of non-standard nuts and the specifications, sizes, and patterns of non-standard nuts should be designed according to the needs of the product. The material and surface treatment of non-standard nuts should be determined in combination with the product and its use environment. Materials such as copper, iron, stainless steel, alloy, etc. Surface treatment processes such as galvanizing iron nuts or degreasing stainless steel nuts.

　　non standard fasteners.jpg

　　3. The drawings of non-standard nuts are generally designed by the demander, and the specifications, sizes and requirements of each part of the non-standard screws are marked on the drawings. If there is no drawing. As long as the product for non-standard nuts is provided, or the requirements for non-standard nuts are provided, the manufacturer can also design non-standard screws according to the actual situation.

　　nut mold supplier.jpg

　　4. After the drawing is designed, proofs are made according to the size and specifications of the nut. If there are no problems with the sample production, mass production will be carried out according to the requirements of the nut.

　　Choosing which surface treatment to use is a problem that every designer faces. There are many types of surface treatments to choose from, and not only should the economy and practicality of the design be considered, but also the processability of the assembly and even environmental protection requirements should be taken into consideration. The following is a brief introduction to some commonly used coatings for fasteners based on the above principles for reference.Only by working together can we turn non standard fasteners The value of the play out, the development of the supply market needs. https://jieruifasteners.com/

　　1. Electrogalvanizing

　　Electrogalvanizing is the most commonly used coating for commercial fasteners. It is relatively cheap and looks good. Common colors include black and military green. However, its anti-corrosion performance is average, and its anti-corrosion performance is the lowest among zinc plating (coating) layers. Generally, the neutral salt spray test of electrogalvanizing is within 72 hours. Special sealants are also used to make the neutral salt spray test reach more than 200 hours, but the price is expensive, which is 5 to 8 times that of general galvanizing. The torque-preload consistency of electrogalvanized fasteners is poor and unstable, and is generally not used for connections in important parts. In order to improve the torque-preload consistency, the method of applying lubricating substances after plating can also be used to improve and improve the torque-preload consistency.

　　2. Phosphating

　　A basic principle Phosphating is cheaper than galvanizing, but its corrosion resistance is worse than galvanizing. Oil should be applied after phosphating, and its corrosion resistance is greatly related to the performance of the oil applied. For example, after phosphating, applying general anti-rust oil, the neutral salt spray test is only 10 to 20 hours. Applying high-grade anti-rust oil can last for 72 to 96 hours. But its price is 2 to 3 times that of general phosphating oiling.

　　There are two common types of non-standard fasteners phosphating, zinc phosphating and manganese phosphating. Zinc phosphating has better lubrication performance than manganese phosphating, and manganese phosphating has better corrosion resistance and wear resistance than galvanizing. Its operating temperature can reach 225 degrees to 400 degrees Fahrenheit (107 to 204 degrees Celsius). Especially for the connection of some important parts. Such as the connecting rod bolts and nuts of the engine, cylinder heads, main bearings, flywheel bolts and wheel bolts and nuts. Phosphating high-strength bolts can also avoid hydrogen embrittlement problems, so in the industrial field, bolts above grade 10.9 are generally treated with phosphating surface treatment.

　　3. Oxidation blackening

　　Blackening + oiling is a very popular coating for industrial fasteners because it is the cheapest and looks good before the oil runs out. Since blackening has almost no anti-rust ability, it will rust quickly after oiling. Even in the presence of oil, the neutral salt spray test can only reach 3 to 5 hours.

　　4. Electroplating cadmium

　　Cadmium coating has good corrosion resistance, especially in marine atmospheric environment, its corrosion resistance is better than other surface treatments. The waste liquid treatment cost in the process of electroplating cadmium is high, and its price is about 15~20 times that of electroplating zinc. Therefore, it is not used in general industries and is only used in some specific environments. For example, it is used for non-standard fasteners for oil drilling platforms and HNA aircraft.

　　Cold heading and cold extrusion are basically deformation processes under the same conditions, but they are different in operation. Cold heading is a forging deformation of smaller workpieces and is often used in the fastener industry. Cold extrusion is an extrusion deformation of larger workpieces and has a wide range of uses.understand Non standard hardware factory In order to better serve customers and reflect the core competitiveness of products. https://jieruifasteners.com/

　　1. What is cold extrusion

　　Cold extrusion is a processing method in which a metal blank is placed in a cold extrusion die cavity and, at room temperature, a punch fixed on the press is used to apply pressure to the blank to cause the metal blank to undergo plastic deformation to produce parts. Obviously, cold extrusion processing relies on the die to control the flow of metal and relies on the large-scale transfer of metal volume to form parts. In terms of extrusion equipment, my country has the ability to design and manufacture extrusion presses of various tonnages. In addition to using general mechanical presses, hydraulic presses, and cold extrusion presses, friction presses and high-speed and high-energy equipment have also been successfully used for cold extrusion production.

　　At present, cold extrusion technology has been widely used in industrial sectors such as fasteners, machinery, instruments, electrical appliances, light industry, aerospace, shipbuilding, and military industry, and has become one of the indispensable and important processing methods in metal plastic volume forming technology. With the advancement of science and technology and the continuous improvement of product technical requirements in the automobile, motorcycle, household appliances and other industries, cold extrusion production technology has gradually become the development direction of refined production of small and medium-sized forgings.

　　2. What is cold heading

　　Cold heading is one of the new processes of metal pressure processing with little or no cutting. It is a processing method that uses the plastic deformation of metal under the action of external force, and with the help of a mold, the metal volume is redistributed and transferred to form the required parts or blanks. The cold heading process is most suitable for the production of non standard fasteners such as bolts, screws, nuts, rivets, and pins. The commonly used equipment for cold heading is a dedicated cold heading machine. If the production volume is not too large, it can also be replaced by a crank press or a friction press.

　　Cold heading technology has high productivity, good product quality, and greatly reduces material consumption, reduces production costs, and improves working conditions. Therefore, it is more and more widely used in mechanical manufacturing, especially in the production of standard fasteners. Among them, the most representative products produced by multi-station cold heading machines are bolts, screws and nuts.

　　3. Are cold heading and cold extrusion the same thing?

　　Cold heading and cold extrusion are basically deformation processes under the same conditions, but they are different in operation. Cold heading is a forging deformation of smaller workpieces and is often used in the fastener industry. Cold extrusion, on the other hand, is an extrusion deformation of larger workpieces and is widely used; cold heading is equivalent to a branch of cold extrusion. Simply put, in the process of making bolts, hexagonal head forming is cold heading, and rod diameter reduction is cold extrusion (positive extrusion). Non-cut hexagonal flange bolts (multi-station forming) have both cold heading and cold extrusion. The front shaping of hexagonal nuts is only cold heading, and the hole extrusion in the back process is cold extrusion (positive and negative extrusion).