DIN 603 bolts are the tools used to fasten the objects of the objects. They are everywhere in our daily life and have become one of the indispensable parts in our daily life and work. Large to large machinery, small to machine parts. It is ubiquitous and versatile. Due to the wide variety of DIN 603 bolts, it is possible to achieve a wide range of applications. With the development of technology, DIN 603 bolts have entered a new stage of development, saving energy in their use and adapting to the development needs of society.
DIN 603 bolts are widely used in machinery, petrochemical, telecommunications, chemical, construction, power, textile, sports equipment, paper, sewage, shipbuilding, automotive and other industries. With the domestic economic living standards greatly improved the application range of DIN 603 bolts Will be more extensive.
DIN 603 bolts are fitted with mechanical or non-metallic mechanical parts to form high-strength, wear-resistant, high-precision standard internal threads. DIN 603 bolts can be used as a means of repair for quick and effective repair and repair of threaded holes of various important components after the thread has been machined incorrectly or has been repaired. In addition, DIN 603 bolts are used for metric and inch threaded hole conversion, which is very convenient and fast.
I believe that everyone will see a variety of bolts in their daily lives, from the bolts on the frame to the bolts on the rocket plane, so we can find that the bolts are everywhere in our lives, bolts Basically it has covered our lives.
Then there are many kinds of bolts, and one of the DIN 603 bolts is also widely used by everyone. What are the characteristics of DIN 603 bolts? Let the bolt manufacturer tell you in detail.
The use of DIN 603 bolts is very extensive. For example, stainless steel plates, engineering installations, metal steel plates and galvanized steel plates that we usually see are also applied to DIN 603 bolts. Then some general angle steel or channel steel and iron plates are combined with other metal materials to install DIN 603 bolts.
Since the DIN 603 bolt is used so widely, you must be wondering what it has. First of all, DIN 603 bolt drilling and tapping, its bonding force is very strong, can be completed once locked. In this way, you can save your construction time and greatly improve your work efficiency, so many factories use DIN 603 bolts.
Of course, to use DIN 603 bolts should also pay attention to its own quality, remember not to buy some inferior bolts for cheap, because this will cause a lot of safety hazards.
Metal stamping is a complex process that can include many metal forming processes – punching, punching, bending and perforating. Blanking: This process is about cutting rough outlines or product shapes. This phase is about minimizing and avoiding Burr, which increases your part cost and extends the lead time. This step is used to determine hole diameter, geometry/taper, edge to hole spacing and insert the first perforation. Blanking – Metal stamping design Bending: When you design a bend in a metal stamping, it is important to allow enough material – to ensure that the part and its blank are designed so that there is enough material to perform the bend. Some important factors to remember:
If the bend is too close to the hole, it may be deformed.
The width of the notches and tabs and the grooves should be at least 1.5 times the thickness of the material. If they are made smaller, they are difficult to form because the force exerted on the punch causes them to break. The radius of each corner in the blank design should be at least half the thickness of the material.
To minimize the number and severity of burrs, avoid sharp corners and complex cuts as much as possible. If these factors cannot be avoided, be sure to pay attention to the burr direction in the design to take these factors into account during the stamping process.
Imprint: This action is when the edge of the stamped metal part is crushed or broken; this creates a smoother edge in the molded area of the part geometry; this also adds extra strength to the local area of the part. This can be used to avoid secondary machining such as deburring and grinding.
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First, hot-dip galvanized DIN 603 bolt features
The hot-dip galvanized DIN 603 bolt is obtained by immersing the rust-removed steel in a zinc solution melted at about 500 ° C to adhere the zinc layer to the surface of the bolt to prevent corrosion. The galvanized layer is relatively strong. The galvanized layer is relatively strong. Cold galvanizing, relatively no heating, little galvanizing, galvanized parts are easy to fall off when exposed to moisture. The fundamental difference between hot-dip galvanizing and cold-galvanizing is: Hot-dip galvanizing, also known as hot dip galvanizing, melts the zinc ingot by high temperature, puts the auxiliary material, and then immerses the metal structural member in the galvanizing bath. The advantage of hot-dip galvanized DIN 603 bolt is that it has strong anti-corrosion ability. The hardness of the galvanized layer of the bolt is better. “Cold plating” means “electroplating”, that is, the zinc salt solution is electrolyzed, and the plating part is coated without heating. The amount of zinc is very small, and it is easy to fall off when it is wet. Hot-dip galvanizing is a chemical treatment and belongs to an electrochemical reaction. Cold galvanizing is a physical treatment, only a layer of zinc is applied on the surface, so… Hot galvanizing is the galvanization of the steel surface under hot dip conditions. It has strong adhesion and is not easy to fall off. Hot galvanizing Although the tube also shows rust, it can meet technical and sanitary requirements in a long period of time.
First of all, the difference in process is that hot-dip galvanizing is to remove the oil, pickle, dipping, drying and immersing in the melted zinc solution for a certain period of time.
Second, hot-dip galvanizing has the following advantages compared with electro-galvanizing
(1) It can produce a thick coating layer, and has both a pure zinc layer and an iron-zinc alloy layer, so the corrosion resistance is good;
(2) The production efficiency of hot-dip galvanizing is particularly high; the time for the parts staying in the galvanizing hot bath is short
(3) Compared with electro-galvanizing, hot-dip galvanizing has lower production costs and has less impact on the environment than electroplating;
DIN 603 bolt raw materials and related technologies are lagging behind. An important reason for the poor quality of DIN 603 bolt products is the poor quality of raw materials and the backwardness of related technologies. For example, cold heading steel wire cold heading steel is mainly used to manufacture fasteners such as bolts, nuts, rivets and bolts. Its chemical composition and metallographic arrangement are relatively high. Now the annual demand for cold heading steel is about 1 million tons. In the meantime, the automobile industry demanded 100,000 tons. However, due to technical reasons, the domestically produced cold-rolled steel wire only needs 300,000 tons, and imports nearly 700,000 tons per year.
The DIN 603 bolt process and process equipment are of low level, and the DIN 603 bolts do not guarantee the consistency of product quality. The mechanical basic parts are generally batch and many products, and there are also many kinds of products and processing precision requirements. Therefore, the production process and equipment are required to be high and the capital is large. Foreign countries have chosen high-efficiency and high-precision special planes, production lines or flexible lines, and have completed high-efficiency automated production.
DIN 603 bolts are critical to the manufacture and inspection of equipment. Mechanical universal parts have high requirements for standard accuracy, functional reliability and interchangeability of each part. DIN 603 bolts only allow very few products to be out of tolerance, and It is checked out before the factory to remove the unqualified products. It is assumed that there is no high-precision and high-efficiency equipment, and it is difficult for the company to live and open in the fierce competition. At present, the key equipment of China’s parts and components production enterprises is mainly relying on imports, because the wear and tear of equipment is large, and the equipment demand is constantly updated and transformed. The imported equipment and spare parts are expensive, and it is necessary to speed up the handling of critical equipment if you want to speed up the operation.
DIN 603 bolt product development speed problem. China’s mechanical parts operations are far behind in terms of technological innovation and new product development, especially for SMEs, which lacks technical strength and talents, short funds and necessary equipment, and less information about technology and technology communication, resulting in long-term tracking. In the imitation stage, there are very few intellectual property rights. Now there are not many researches on the development of DIN 603 bolt products. There are few independent research and development efforts in the enterprise. This is a key issue for the continued development of the operation.
- Electroplating of DIN 603bolts
Electroplating of DIN 603 bolts means that the parts of the fastener that need to be electroplated are immersed in a specific aqueous solution, which contains some deposited metal compounds, so that after passing through the aqueous solution by electric current, the metal substances in the solution are deposited and adhered to The immersed portion of the fastener. Plating of DIN 603 bolts generally includes galvanizing, copper, nickel, chrome, copper-nickel alloys, and the like.
- Hot dip galvanizing of DIN 603bolts
The hot dip galvanizing of DIN 603 bolts is to immerse the DIN 603 bolt of carbon steel into the bath of molten zinc with a heat of about 510 ° C, so that the iron-zinc alloy on the surface of the DIN 603 bolt will be converted into passivated zinc. Get a surface treatment effect. Hot dip galvanizing of DIN 603 bolts is more expensive than electroplating.
- Mechanical plating of DIN 603bolts
Mechanical plating of DIN 603 bolts refers to the impact of the surface of the fastener by a specific physical and chemical means, with the powder of the coated metal, so that the coated metal forms a coating on the surface of the fastener to form a surface. Processing effect. Mechanical plating of DIN 603 bolts is mainly suitable for spare parts such as screws, nuts and gaskets.
The surface treatment of DIN 603 bolts, the main purpose is to make the fastener itself corrosion-resistant to increase the reliability and adaptability of DIN 603 bolts. Therefore, the quality judgment of DIN 603 bolt surface treatment is more important. Whether the corrosion resistance of the DIN 603 bolt is effectively increased and the magnitude of the increase meets the expected requirements.