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  1. weigaofasteners

    How Does Fasteners Suppliers Avoid Biting?

    Do you know how to avoid the seizure of stainless steel screws and stainless steel nuts? Today Stud Manufacturer-weigao will explain to you how to avoid the seizure of stainless steel screws and stainless steel nuts. Generally, stainless steel screw manufacturers do not recommend the use of stainless steel screws and stainless steel nuts together. Due to the material of stainless steel, stainless steel screws are often seized after they are tightened with stainless steel bolts and stainless steel nuts during the assembly of low-temperature pipeline flanges. It is difficult to remove it. So if stainless steel screws are used in conjunction with stainless steel nuts, which aspects should we solve the seizure state? 1. Cryogenic treatment can be done to intrude stainless steel screws into a low-temperature liquid nitrogen box for a certain period of time to reduce the deformation caused by temperature differences and metallographic changes, thereby improving the sealing performance of the valve at low temperatures. 2. Change the stainless steel nut to other materials, or change the basic one to other materials. This avoids the seizure of stainless steel bolts and stainless steel nuts. 3. At present, there is a technology that can prevent the screw and the nut from biting. 4. When Fasteners Suppliers uses stainless steel screws and stainless steel nuts, apply some grease on the stainless steel screws to avoid the phenomenon of stainless steel screws seizing.
  2. Now there are many different shapes and sizes on the market, which are used for connection or fastening. We call it a screw for short. Screws are most often contacted in daily life with wall nails (dry wall nails). Screws have many uses, but do we know how a small screw is produced? Today, we will walk into weigao Fasteners Suppliers to understand how the little things we most often contact were born. In fact, the raw materials used to produce screws are the ones that most affect the quality and life cycle of the screws. It's like having no fresh meat and vegetables, giving you the best knives and chefs, and you can't make a table of delicious and delicious dishes. The same goes for screws. Brushing teeth Walking into the workshop, our master is cold-drawing the round steel we purchased back into steel wire. The next step is to start the head. The master told us that different screws have different heads, so we need to Adjust the mold on the punching machine so that the nail embryo can be produced. Now the screw is just a rudiment; the next step is to rub the teeth. Just like the head, you need to adjust the thread shape of the rubbing plate to rub the thread. Heat treatment is needed, carburizing, quenching, and tempering are required to complete the heat treatment. The last step is to plate or phosphatize the color. Such a complete screw is completed. However, phosphating is generally required, and most of them are wallboard nails (drywall nails). Because wallboard nails (drywall nails) are mostly used to connect gypsum boards, Stud Manufacturer generally only need phosphating. The colors of other general self-tapping screws are relatively rich. For self-tapping screws, different factories have different requirements.
  3. weigaofasteners

    Stud Manufacturer Adjustable Fasteners

    With the development of science and technology, square column fasteners have appeared, and the emergence of square column fasteners has solved many problems. One of the square column fasteners is an adjustable square column fastener. Adjust square column fasteners, so what are the advantages of adjustable square column fasteners? The following Stud Manufacturer will give you a specific talk about the advantages of adjustable square column fasteners. 1. Surface galvanizing, galvanizing is currently cold galvanizing, and will become hot-dip galvanizing in the future, but even cold galvanizing, the effect is also very outstanding, enhancing its advantages in corrosion resistance and solving square pillars Even if the fastener is stored for a long time, there is no need to worry about rust. 2. The raw material used is steel, the model is Q235B steel. The high-strength quality performance makes the reinforcement strength greater, and the use of steel products is more assured, and the nature of the product is not deformed. 3. The full name of the square column fastener is "new adjustable square column formwork reinforcement", because of the adjustability of the square column reinforcement, for example, the small size 400-600 can be reinforced by 400*400, 500*500, 600* The 600-size square column has powerful functions that make all customers amazed. Fasteners Suppliers square column fasteners have been promoted for many years, and now they have become the mainstream square column reinforcement system in major construction sites. The main advantages of this product are convenience and quickness, easy installation, convenient and repeated use of reinforcement, and easy management of collective storage. .
  4. Standard parts refer to the commonly used components such as screw parts, keys, pins, rolling bearings, etc. which have been fully standardized in structure, size, drawing method, marking, etc. and are produced by professional Bolt Factory. The standard parts are mainly three materials: carbon steel, standard parts stainless steel, and copper. Here is a brief introduction to these three materials: 1. Carbon steel: low carbon steel, medium carbon steel, high carbon steel, alloy steel. Second, stainless steel: mainly divided into martensitic stainless steel, austenitic stainless steel, ferritic stainless steel, etc. 3. Copper: The commonly used materials are brass and zinc-copper alloy. (Mainly use H62, H65, H68 copper as standard parts.) Nanjing Standard Parts    The standard parts are mainly considered from the following aspects when selecting materials: 1. Requirements for standard parts materials in terms of mechanical properties, especially strength; 2. The requirements of working conditions on the corrosion resistance of the material; 3. The requirements of the working temperature on the heat resistance (high temperature strength, oxidation resistance) of the material; 4. China Nut's production process requirements on material processing performance; 5. Other factors, such as weight, price, and procurement must be considered.
  5. Welding nut is a nut suitable for welding outside the nut.It is generally made of a weldable material and is thicker and suitable for welding.Welding is equivalent to turning two separate pieces into a whole, melting the metal at high temperature and mixing After cooling together, the alloy will be added in the middle, the internal is the role of molecular force, and the strength is generally greater than the strength of the parent body. The welding parameter experiment depends on the fusion size of the weld, and the welding parameter is adjusted according to the fusion size until the defect is eliminated. Of course, the quality of welding is related to pre-welding treatment, such as cleaning, oil stains, etc. There are many factors that affect the welding quality of projection weld nuts.For China Stud Supplier, there are mainly: the material of projection weld nuts, the form and size of projections of projection weld nuts, and the surface cleanliness (natural color plus appropriate anti-rust treatment); In the welding process of projection welding nuts, the most important thing is to control three process parameters: electrode pressure, welding current and welding time. The increase in electrode pressure causes the bumps to collapse instantaneously, the weld nugget size decreases or even disappears, and the joint strength decreases, destroying the stability of the welding process; the electrode pressure is too small, on the one hand, the bumps cannot be crushed, on the other hand The welding process produces splashes. The welding current should be properly matched with the welding time. Generally, the harder specifications are used when the diameter of the nut bump is large, and the soft specifications should be used when the diameter of the bump is small.   Sometimes we often encounter the problem that the M6 welding nut is not welded well. The material we are using now is Baosteel 1008. And the meat of the fillet is not less. For this problem, the main reason is that the two materials should be similar, preferably the same, and the quality of the electrode used. There are many factors that affect the welding quality of projection weld nuts.For Industrial Bolt Factory, there are mainly: the material of projection weld nuts, the form and size of projections of projection weld nuts, and the surface cleanliness (natural color plus appropriate anti-rust treatment); In the welding process of projection welding nuts, the most important thing is to control three process parameters: electrode pressure, welding current and welding time. The increase in electrode pressure causes the bumps to collapse instantaneously, the weld nugget size decreases or even disappears, and the joint strength decreases, destroying the stability of the welding process; the electrode pressure is too small, on the one hand, the bumps cannot be crushed, on the other hand The welding process produces splashes. The welding current should be properly matched with the welding time. Generally, the harder specifications are used when the diameter of the nut bump is large, and the soft specifications should be used when the diameter of the bump is small.
  6. weigaofasteners

    Commercial Supply Of China Nut

    The standard parts produced by Bolt Factory are similar to machine screws, but the thread on the screw is a special thread for self-tapping screws. It is used to fasten and connect two thin metal components into one piece. Small holes need to be made on the components in advance. Due to the high hardness of such screws, they can be directly screwed into the holes of the components. It is also similar to machine screws, but the thread on the screw is a special thread for wood screws, which can be directly screwed into a wooden component (or part). It is used to connect a metal (or non-metal) part with a through hole to a wooden component Tighten together. This connection is also detachable. It is a type of fastener composed of two parts, the head and the screw. It can be divided into three categories according to the purpose: machine screws, set screws and special purpose screws. The machine screw is mainly used for a tightly threaded part and a fastened connection between a part with a through hole, which does not require a nut fit (this form of connection is called a screw connection and is also a detachable connection; it can also It is used with nuts to fasten the connection between two parts with through holes.) Set screws are mainly used to fix the relative position between two parts. Special purpose screws such as eye bolts are used for lifting parts. With internal threaded holes, the shape is generally a flat hexagonal column, or a flat square column or a flat cylinder. It is used with bolts, studs or machine screws to fasten and connect two parts into one piece. overall. With the increase in international exchanges, the development of imported mold localization and the requirements of foreign-funded enterprises for the international standards of their supporting molds, on the one hand, attention has been paid to adopting international standards or foreign advanced national standards as far as possible in the formulation of standards, including the adoption of advanced Enterprise standards; on the other hand, many mold standard parts manufacturing companies produce mold standard parts according to Chinese standards, and also produce mold standard parts according to the standards of advanced foreign companies. Standard parts are an important part of the mold and the basis of the mold. It has very important technical and economic significance for shortening mold design and manufacturing cycle, reducing mold production cost and improving mold quality. The experience of foreign industrial developed countries proves that the professional production and commercial supply of China Nut has greatly promoted the development of the mold industry.
  7. The main purpose of China Nut is to fasten utensils and parts. It is mostly used in mining, metallurgy, textile, transportation machinery, etc. It is generally suitable for occasions requiring simple equipment and parts, has a certain degree of self-alignment, is easy to follow, has a double-structured sealing device, and works in harsh environments. China Nut is the tightening principle of screws. Most fasteners are used between the shaft and the sleeve to prevent the shaft and the sleeve from changing their position during use. They can be used to prevent relative movement between the shaft and the sleeve, and some The top thread is used for easy disassembly. For example, the two parts are tightly coupled and can be separated by the top thread. China Nut has a wide range of uses. Although the screws are small, the effect is not small. Friends who need China Nut can contact us at weigao Bolt Factory.
  8. weigaofasteners

    China Nut Corrosion Prevention Method

    All industrially developed countries attach great importance to the development of Full Threaded Stud, especially mold standard parts. Because the mold is a product formed by the tool. Mold standard parts can play a certain role in ensuring the quality of industrial products. As China's economy enters a stable period, the industrial structure is gradually optimized, and the quality requirements for industrial products are becoming higher and higher. This requires higher and higher standards for mold standard parts. China's mold standard parts must be Will develop towards the high end. It is understood that due to the late start of my country's mold standardization, at present, my country's mold standard parts have long been characterized by few varieties and specifications, small production scale, unsmooth circulation, many low-end and high-end products. The standard parts of high-end molds produced by some foreign-funded enterprises are affected by their high price and their promotion and application. For my country's mold standard parts companies, there is too little concentration, China Fasteners is too much and too loose, and product quality can not keep up; for the mold standard parts market, disorderly competition is the market is chaotic.
  9. Note on the use of China Nut: Stainless steel and carbon steel are essentially different. Stainless steel has good ductility. Improper use can cause screws and nuts to loosen. Commonly referred to as "locking" or "bite". The improvement of locking can be considered from the following aspects: 1. Choose China Nut correctly: (1) Confirm whether the mechanical properties of the product meet the requirements (such as the safety load and tensile strength of the bolt and nut) before use; (2) The length of the bolt should be properly selected, subject to the 1-2 pitch of the nut exposed after tightening. 2. Reduce the friction coefficient of China Nut: (1) The thread must be kept clean; (2) Add lubricant (eg butter, 40 # engine oil) before use. 3. Correct operation method of China Nut: (1) The nut must be tightened perpendicular to the axis of the screw and cannot be tilted; (2) During the tightening process, the force must be applied evenly, and the force must not exceed the safe torque value (with a safe torque table); (3) Use socket wrenches or torque wrenches as much as possible, and avoid using electric wrenches or adjustable wrenches; (4) It must be cooled when used under high temperature. Do not rotate it quickly during use, otherwise the temperature will rise quickly and cause locking (such as electric wrench, etc.) 4. China Nut Safe Torque Reference Table: (1) Equipment used: torque wrench, vice, matching sleeve: (2) Performance level of screws and nuts; A2-70, 304 material, tensile strength: 700N / mm², drop strength: 450N / mm²; (3) Operation method: clamp the screw head vertically on the bench vice, clamp the workpiece, flat washer and spring washer in between, and tighten the nut evenly. The force on the nut is as follows: After setting this value, the nut will no longer be able to be unscrewed smoothly. (4) China Nut Safe Torque Table: Unit: Nm size M20-2.5 M18-2.5 M16-2.0 M14-2.0 M12-1.75 safe torque 220 180 150 100 55 size M10-1.5 M8-1.25 M6-1.0 safe torque 40 40 9. Welcome to Zhejiang Weigao Standard Parts Bolt Factory, we will continue to provide you with professional knowledge and information. If you are interested, please come and leave us a message.
  10. weigaofasteners

    Excellent Performance Of China Nut

    1. Due to the special treatment on its surface, it has a relatively smooth appearance, and its surface is relatively smooth, it is not easy to appear burrs, and it has the characteristics of silvery white. In production, its thickness should be able to be controlled within a certain range for proper selection. 2. It has excellent performance in use, has good tensile properties, is not prone to breakage, and there is no temperature hazard during use, which can ensure its mechanical properties. 3. The galvanized China Nut has excellent corrosion resistance, so it has good usability and strong fastening, and it is generally not easy to loosen. The post-treatment of hot-dip galvanized China Nut includes three aspects, passivation, pre-phosphating and oiling. First, passivation treatment of hot-dip galvanized China Nut can improve the surface structure and gloss of the galvanized layer, improve the corrosion resistance and service life of the galvanized layer, and can improve the adhesion between the coating and the base metal. Passivation treatment mainly adopts chromate passivation. Some activators are added to the passivation solution, such as fluoride, phosphoric acid or sulfuric acid, so that a thick chromate film is obtained after passivation. When there is fluoride in the passivation solution, the surface tension of the steel strip can be reduced, the film-forming reaction can be accelerated, and the chemical polishing can be increased to make the passivation film fine and bright. Zhejiang Weigao Bolt Factory, we design and manufacture a variety of bolt products for you. If you are interested in this area, don't miss us. Choosing us will bring you a comprehensive guarantee.
  11. China Nut is a kind of mechanical parts used for fastening and connection and is widely used. All kinds of fasteners can be seen on various machinery, equipment, vehicles, ships, railways, bridges, construction, structures, things, instruments, appearance and supplies. It is characterized by a wide variety of specifications, different functions and uses, and a high degree of standardization, serialization, and generalization. Therefore, some people refer to a type of fastener that has been nationally standardized as a standardized fastener, or simply as a standardized piece. Fasteners include: bolts, studs, screws, nuts, washers, pin fasteners, also known as standard parts on the market. It is a type of mechanical part used for fastening and connection. It is extremely widely used. The characteristics of fasteners: a variety of specifications, different functions, and a high degree of standardization, serialization and generalization. Therefore, some people also refer to a type of fasteners that have been regulated by the state (vocational) as standardized fasteners, or simply as standardized parts. Because the specifications, scale, public service, weight, function, surface condition, symbol method, and acceptance inspection, marking and packaging of each specific fastener product are specified in several countries (occupation) specifications Among them, there are English, German and American systems, for example. Fasteners are the most widely used mechanical basic parts. As China joined the WTO in 2001 and entered the ranks of international trade powers. China's fastener products are exported to countries all over the world, and fastener products from all over the world are constantly pouring into the Chinese market. Fasteners, as one of the products with a large import and export volume in China, have been integrated with the international market, which has important significance for promoting China's fastener companies to the world and promoting the full participation of fastener companies in international cooperation and competition. Strategic significance. Fastener is a general term for a type of mechanical parts selected when two or more parts (or components) are fastened and connected into a whole. It is also known as a standard part in the market. The above is what we zhejiang weigao Bolt Factory will share with you today. For more related information, please pay attention to our website for a long time.
  12. Sales of Hexagon Socket Head Bolt are everywhere, so how do you find a professional to do Hexagon Socket Head Bolt manufacturers, especially when you want to make a custom, you must find a professional, how to know if a screw factory is not professional? 1. Zhejiang Weigao Standard Parts Co., Ltd., a Hexagon Socket Head Bolt manufacturer, was established early. It has been developing and growing for 22 years, from two or three machines to more than one hundred imported processing equipment. 2. 2000 square meters of workshops, workshop employees with an average industry experience of more than 13 years 3. The screws are made of various original materials, with rich material categories, and increased material detection to control the quality from the source 4. Stable tolerance 5. Production according to drawings 6. Professional non-standard customization, all kinds of special-shaped screws, difficult screws can be done 7. Improve after-sales service, one-on-one customer follow-up service, let you worry-free after-sales Are you still hesitating about such a professional custom manufacturer? If you need screws, please contact China Fasteners Suppliers - Zhejiang Weigao Standard Parts Co., Ltd.!
  13. weigaofasteners

    How Should Full Threaded Stud Be Checked?

    Fasteners indicate that the Full Threaded Stud generally goes through the cleaning process during the manufacturing process. However, in such a necessary link, due to improper methods and other reasons, some problems occurred in the production process of Full Threaded Stud. Here, the following small editor introduces the problems that are relatively easy to occur when cleaning the fullthreshold study. We want to talk about what will happen to the cleaning after quenching. For the normal production process, after quenching, the full threshold study will use a solution with silicate for cleaning and then rinse. At this time, the operator needs to carry out the cleaning very carefully, because if he is not careful at this time, some dirt will remain on the full threshold study. Then such full threshold study is a product with substandard quality. For this link introduced next, although it is somewhat out of touch with cleaning, it also needs to be soaked with a solution. That is to say, when the Full Threaded Stud is tempered, fading will inevitably occur. After such a situation occurs, the better treatment method is to soak with ether. However, oil-like residues will also appear in this way. The reason for this is that the Full Threaded Stud is not stacked properly during heating, resulting in oxidation during quenching. As far as the current situation is concerned, the difference between Full Threaded Stud and standard parts is not big. the Full Threaded Stud manufactured according to the technical standards is the standard Full Threaded Stud, sometimes abbreviated as Full Threaded Stud. The standard fullthreaded study is an important category of standard parts. Full Threaded Stud is now basically a standard part, and is also a standard part for fastening classes. Most of the standard parts are Full Threaded Stud, but the range of standard parts is larger. Therefore, their business scope is basically the same. At present, many people have combined the Full Threaded Stud with standard parts. Full Threaded Stud is a general term for a type of mechanical parts used when two or more parts are tightly connected into a whole. It is also called standard parts in the market. Therefore, people need not stick to the difference between the two all the time, but only need to use it appropriately.
  14. Stud, as a kind of part, has been used more and more widely in our life. But do you know anything about this part? Next, follow zhejiang weigao Stud Manufacturer to learn more about this area of expertise. Key point one: testing the quality of the materials produced by riveting Stud. The quality of the production materials of the riveting Stud directly determines the use value and the use period of the riveting Stud. When we come back from a professional wire manufacturer to order Stud's production materials, we will check its quality. For example, we have ordered stainless steel wire from wire manufacturers, so we need to check whether it is stainless steel wire and whether it is the type of stainless steel wire we need (there are generally two types of wire, one is 303 stainless steel and the other is 304 stainless steel). The size of the ordered stainless steel wire does not meet our requirements. Related Products: Pneumatic Riveting Stud Gun Point 2: Test the production process of the riveting Stud In this kind of Stud hardware fasteners in the production process, especially in the process of Stud machine pier, must be strictly controlled. After the Stud machine forms the pier, it is necessary to check the thread specification and all dimensions of the Stud to see if it can reach the standard and meet the accuracy required by customers. After these specifications and sizes are up to the standard, the tapping of the Stud shall be tested, and the general rules and regulations of the Stud shall be strictly controlled. Related Products: Welding Screw Point 3: Test the electroplated layer of the rivet Stud For this rivet stub product, except for the products made of stainless steel, the stub products made of other materials need to be electroplated according to customer's requirements. When plating it, we need to check the color of plating to see if it meets the customer's requirements. (When necessary, we can carry out a salt spray test on the coating to see if it can meet the requirements of customers. ) Point 4: Inspection during delivery and packaging of riveting Stud This point is mainly to filter those Stud fastener products with quality problems so as to prevent the Stud products with quality problems from flowing into the hands of customers. For this reason, Zhejiang weigao standard parts co., ltd. has strictly checked the product quality and conducted three quality tests in the process of product processing and production. Therefore, the general customers are not very worried about the quality of our products.