Special Type Socket Head Cap Screw (Umb Rella Type)

The principle of super screw processing professionals ignored a smile, so the simple knowledge is here to show off. But for ordinary people, this is not necessarily known, unless you have visited and studied the screw factory. Screws and screw machines were invented and manufactured by the British for more than 200 years. There are two forming processes for threads: cutting and extrusion.

Special screw cutting is usually lathe processing, that is, finding an iron rod, which is a round rod of the material you need. The diameter of the round steel is the very large outer diameter of the special screw. The front end of the turning tool should be ground to the size of the screw teeth, otherwise it will affect the assembly. The thread is then cut and machined by machine. The popular view is that the excess material of the round bar is dug into the thread by a turning tool. This processing method is suitable for small batch and high precision processing. However, the processing cost is high and the efficiency is low.

Special grade screw extrusion processing using professional screw equipment processing. The screw manufacturing industry is called a gear grinding machine. The diameter of the iron rod is an intermediate value between the very large size at the top of the screw and the very small size at the bottom of the screw. Using the fluidity of metal materials, high-speed extrusion molding through the mold can realize batch automatic production with stable quality. Low cost, high efficiency, suitable for mass production. Screw plants are usually formed by extrusion.

Because copper screws and aluminum screws have good conductivity and heat dissipation, they are widely used in electric power, home appliances, lighting and other industries. However, there are few special screw factories in China that specialize in processing copper screws and aluminum screws. Senke Hardware Screw Factory is a professional manufacturer of non-standard screws and special screws, with many years of processing experience. In this regard, we are willing to share the experience accumulated over the years, jointly improve the processing level of the domestic special screw industry, and participate in international competition.

First of all, the process principle of copper wire is similar to that of steel wire. The main reason is that when purchasing copper wire and aluminum wire, raw materials can only be ordered if there is a clear order. If there is no order, do not prepare inventory, otherwise it may become scrap copper and scrap aluminum, which will be a huge waste. Secondly, when making aluminum wire and copper wire, it should be noted that the copper wire and aluminum wire are very soft, and aluminum scrap and copper scrap can easily stick to the mold cavity, causing product scratches. Let the aluminum surface have a layer of oxide film, the time is shorter, in order to reduce the possibility of sticking to the mold.

In addition, during the production process, lubricants (solid, powder and powder) should be sprayed on the aluminum surface to minimize the phenomenon of sticking to the mold. No matter how hard you try, it is impossible to completely ensure that there is no mucous membrane, so you can only watch the production one by one. When there is a sticky mold, immediately stop the machine, remove the aluminum shavings, and then re-produce.

Special screws can be seen everywhere in our daily lives, such as gas stoves, anti-theft door locks, TV remote controls, and even your mobile phone, pants and belts. It is not surprising that we have already entered the industrial age. Industrial products have completely surrounded our daily lives. Industrial products are composed of large and small parts, which are connected by special screws.

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