How To Avoid The Misalignment Of DIN 603 Bolts

Posted by abyihui on Sep 17, 2019 in News

In the use of DIN 603 bolts and nuts, a common problem is the occurrence of misalignment. So in the production process, how do we avoid misalignment? Let’s take a look at it.
In the symmetrical DIN 603 bolt and nut product, a symmetrical positioning hole can be installed to prevent misalignment during bending. When bent, the matte side of the DIN 603 bolt and nut product should be directed as far as possible in the direction of bending, so as not to tear the burr by tension. If not allowed, a process hole must be provided to position it. Rolling edge is also a special shape of the inner diameter of the curved hole. The thickness of the material of the rolled workpiece should be larger. The inner diameter of the thicker part should be larger. Generally, d>1.5 can be used. It is not necessary to set the center line of the crimping on the center of the metal sheet. If the plane of the metal sheet is placed at the tangent position of the cylinder, it is economical to manufacture.
Therefore, the DIN 603 bolt and nut can be used in these ways to avoid misalignment and ensure good performance.



Defects Of Hot-dip Galvanized DIN 603 Bolts

Posted by abyihui on Sep 10, 2019 in News

Due to the small size of DIN 603 bolts, irregular shapes and some threading, there are some obvious defects in hot dip galvanizing.

1. It is difficult to screw the screw after plating. After the hot dip galvanizing, the residual zinc remains in the thread and is not easily removed, and the thickness of the zinc layer is uneven, which affects the fitting of the screw. It is stipulated in GB/T13912-1992 “Technical Requirements for Hot Dip Galvanizing Layer of Metal Covered Steel Products” and GB/T2314-1997 “General Technical Requirements for Electric Power Fittings”; the external thread of fasteners shall be in accordance with GB196 before hot dip plating. Standards are specified for machining or tanning, while internal threads can be machined before or after hot dip coating. However, in practical applications, customers often require galvanized layers for both internal and external threads. Therefore, various measures have been taken to solve the problem of hot dip galvanizing of threaded fittings. Such as the backlash after the screwing of the screw; reserved a large fit clearance; centrifugation and other methods. The backlash easily destroys the plating of the threaded part and even exposes the steel substrate, causing the fastener to rust. Deliberately over-range to increase the nut diameter or reserve clearance, it is easy to reduce the mating strength, which is not allowed for high-strength fit.

2, hot dip galvanizing operation temperature is high, will reduce the mechanical strength of high strength DIN 603 bolts. The strength of some threads of 8.8 bolts after hot dip galvanizing is lower than the standard requirements; the strength of bolts above 9.8 after hot dip galvanizing is basically unable to meet the requirements.

3. The working environment is poor and the pollution is serious. The hot dip galvanizing process of fasteners is carried out at high temperature. The solvent drying and the zinc to be plated will cause strong irritating hydrogen gas when it is immersed in the pool; the zinc pool is exposed to high temperature for a long time, and zinc is generated on the surface of the zinc pool. Vapor, the atmosphere of the entire working environment is bad.

Although there are many defects in hot-dip galvanizing of fasteners, the thickness of the hot-dip galvanized coating, the bonding strength is good, and the long-term rot effect is good. It has always been respected in the power, communications, and transportation sectors.



How To Choose A Reliable DIN 603 Bolt

Posted by abyihui on Sep 3, 2019 in News

Usually when you buy DIN 603 bolts, the most important thing is whether the quality of this product is good or not. How is the quality of this product? And many friends are equally concerned about this problem when they choose to buy the DIN 603 bolt anchor ring hook. So what about the quality of this product itself? In fact, many people want to know the quality of this product when they choose to buy, then it is best to look at the manufacturer of this product first. If the DIN 603 bolt is reliable, then the product produced by this manufacturer will not have any problems, and when you use it, you don’t need to worry about the quality of the product is unsafe and reliable.

In fact, friends who have used DIN 603 bolt anchors will know that the quality of the products is mainly due to the strictness of the quality control issues in the production process. If the manufacturer is not strict enough on the quality of the product when producing DIN 603 bolts, then the quality of the product is bound to be problematic. Therefore, the quality factor that contributes to the product itself is that the strict production control of the manufacturer must be very strict. This kind of good is not only to say that the products produced have to be tested, but also to be the most reliable through the praise of the vast number of friends in need.



DIN 603 Bolts In The Selection Of Materials

Posted by abyihui on Aug 21, 2019 in News

Now the quality of many DIN 603 bolts is not up to standard. This is mainly due to the problem of DIN 603 bolts when selecting materials. Let’s talk about the material selection requirements of DIN 603 bolts.

1. Requirements for the corrosion resistance of materials under working conditions. Some of the screws on the standard parts are used on products with high corrosion resistance, which requires us to choose screw wires with high corrosion resistance.
2. The mechanical properties of the screw material, especially the strength requirements. Some screws require a higher strength, so choose the screw material itself to be stronger.
3. Requirements for material processing performance in terms of production process. In terms of production process, some screws and wires are better processed, some are more difficult, and hardness is harder in all aspects. This requires us to choose the appropriate hardness of the screw material, which is conducive to processing and production.
4. The working temperature has requirements on the heat resistance (high temperature strength and oxidation resistance) of the material. Some screws are used in high temperature applications, which requires us to choose screw materials with high temperature resistance.
5, other aspects, such as weight, price, procurement factors must be considered. The weight, price, purchase and other factors of the standard part net screw itself affect the selection of the screw material, and it is possible to better select the screw material by considering these aspects properly.

After reading the above, I believe everyone knows the requirements for the selection of DIN 603 bolts.



DIN 603 Bolt Maintenance Problems Often Occur

Posted by abyihui on Aug 13, 2019 in News

Although the DIN 603 bolt is a small part, it is an indispensable part of the mechanical equipment and plays a very important role. Therefore, when using bolts, we need to carry out regular maintenance and maintenance, so that the bolts can be used safely, and the service life of the bolts can be prolonged and the performance of the mechanical equipment can be improved.

What problems often arise when we perform maintenance on bolts? In fact, there are three major problems:

1. When quenching the bolts, use a silicate cleaning agent to clean the impurities. Then carefully rinse them to avoid leaving impurities on the bolts and affect its normal use.

2. After the bolt is tempered, its color may change. After the bolt is soaked in ether for a period of time, oily substance will be produced. This indicates that the bolt is not clean. After the analysis, it will be found that when the bolt is heated, the stacking is unreasonable, and the bolt may have some small oxidation phenomenon in the quenching oil.

3. If there is white matter on the bolt, it is likely to be some phosphide. The reason for this phenomenon is that it is not cleaned with an acid cleaner, and the cleaning tank is not carefully watched.

If these problems cannot be dealt with in time, it will directly affect the use of bolts, and will also lead to shortened bolt life and damage to bolts. I hope that the above three issues can help you make better use of bolts.



DIN 603 Bolt Rotten Tooth Solution

Posted by abyihui on Aug 7, 2019 in News

Analysis of the causes of DIN 603 bolts with bad teeth during tooth decay: 1, DIN 603 bolt plate quality problems, poor quality, worn teeth, too severe wear in the cutting area. 2, DIN 603 bolt wire itself is harder, resulting in too much wear on the plate. The dental thread is not very good. 3, the dental plate is not flat, the machine slider wear gap is too large, the tooth plate stroke and time are not in place, the front pressure is too tight and so on.

The solution for rot teeth in DIN 603 bolts: Considering that the main cause is the problem of the slab, the easiest way is to replace the new slab. Of course, if time is not allowed, or cost considerations, you can call a professional dental board factory to repair the dental board, or some dental masters can repair themselves.



The Advantages Of DIN 603 Bolt After Hot-dip Galvanizing

Posted by abyihui on Jul 30, 2019 in News

In order to improve the performance of the DIN 603 bolts, it is hot-dip galvanized. Hot-dip galvanizing is a process technology for treating metal surface layers, mainly to improve the corrosion resistance of metal surfaces. What advantages do this have?

1. Good reliability: the galvanized layer and the steel are metallurgically combined and become a part of the steel surface, so the durability of the coating is relatively reliable;

2, comprehensive protection: each part of the plated parts can be plated with zinc, even in the depression, sharp corners and hidden places can be fully protected;

3. Low processing cost: the cost of hot dip galvanizing rust is lower than that of other paint coatings;

4, save time and effort: the galvanizing process is faster than other coating construction methods, and can avoid the time required to paint on the construction site after installation;

5, durable: in the suburban environment, the standard hot-dip galvanizing rust thickness can be maintained for more than 50 years without repair; in urban or offshore areas, the standard hot-dip galvanized rust layer can be maintained for 20 years without repairing ;

6. Strong toughness of the coating: The galvanized layer forms a special metallurgical structure that can withstand mechanical damage during shipping and use.



Yi Hui DIN 603 Bolt To Solve People’s Needs

Posted by abyihui on Jul 24, 2019 in News

It is well known that various bolt parts are used in people’s production and life, and the application of bolts is also very extensive. Today’s high quality and stable DIN 603 bolts solve two important requirements of modern production and installation companies. What are the requirements of DIN 603 bolts?

One: special model bolt customization

The basic business of Haiyan Yihui Bolt Machining is to provide professional services for various bolt demanders. It is worth mentioning that the performance is stable and can meet the needs of most engineering and equipment, and in the long-term use situation. Guaranteed stable characteristics and quality. On the other hand, with the emergence of various large and small types of equipment and industrial processing, there is a high demand for custom model richness, and the advanced large-scale DIN 603 bolt manufacturers are well qualified for most processing needs, and The ability to complete orders with quality and quantity will bring benefits and convenience to customers.

Two: DIN 603 bolt customization

In fact, many modern equipments require more DIN 603 bolt support for the optimization and revolutionary development of internal structures. Another major function of Yihui precision bolt processing comes from its rich experience in DIN 603 bolt processing. In order to ensure the lightness and beauty of the products, most of the bolts used in the modern development of the smart phone industry must be fine and adapt to the space of the mobile phone’s narrow and special shape, and the reliable Yihui precision bolt processing can solve the similar needs of customers. .

It can be seen that the technical development and multi-functional adaptability of Yihui precision bolt processing have solved many demands of the modern processing industry. Generally speaking, it is suitable for the DIN 603 bolt processing business, and various new industries regarding DIN 603 bolts are especially refined. The DIN 603 bolts are machined in two major respects.



Advantages Of Hot-dip Galvanized DIN 603 Bolts

Posted by abyihui on Jul 17, 2019 in News

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 Process Requirements

Posted by abyihui on Jul 10, 2019 in News

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.


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