The design of the tungsten carbide bushing parts should be reasonable, and the best structural plan should be selected as much as possible. The designer of the part should consider the technical requirements of the part and the manufacturability and feasibility of the mold manufacturing.
The design of the mold is the most important step to improve the quality of the mold. Many factors need to be considered. The selection of mold materials, the usability and safety of the mold structure, the machinability of mold parts and the convenience of mold maintenance, these are in the design At the beginning, you should try to be more thorough. The selection of mold materials must not only meet the customer's requirements for product quality, but also consider the cost of the material and its strength within the set period. Of course, it must also be based on the type of mold, working methods, processing speed, and main failure modes. And other factors to select materials.
Tungsten carbide bushing bearing such as: the main failure mode of the punching die is the wear of the cutting edge, it is necessary to choose materials with high surface hardness and good wear resistance; the punching die is mainly subjected to periodic loads, which is easy to cause surface fatigue cracks and cause surface peeling. Then we must choose a material with good surface toughness; the drawing die should choose a material with a particularly low friction coefficient;
The die-casting mold of the tungsten carbide bushing is subject to cyclic thermal stress, so materials with strong thermal fatigue should be selected; for the injection mold, when the plastic part is made of materials such as abs, pp, pc, the mold material can be pre-hardened and tempered For carbide, when the plastic parts are made of high-finish and transparent materials, corrosion-resistant stainless carbide can be selected. When the products are large in batches, quenched and tempered carbide can be selected.
5 categories of high hardness tungsten carbide bushing bearing:
Tungsten carbide bushing (hard alloy) has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, especially its high hardness and wear resistance, even at a temperature of 500 ℃ The bottom remains basically unchanged, and the hardness is still very high at 1000°C.
1. Stretching die and concave die ∮180*∮95*40, the hardware factory pulls a 1.5-thick cold-rolled sheet drum, with high hardness, smooth friction coefficient, no scratches on the surface of the stretched product, and a service life of 1.5 million times.
2. Straight bushing (into the child), the inner hole is above Φ1.0, the electronic hardware factory continuously stretches the lower mold insert, the hardness is high, the inner wall is smooth, the surface of the stretched product is smooth, no pull marks, and long service life Up to 1 million or more.
3. One-piece bushing, the hardware and electronics factory stretched the one-piece bushing to solve the problem of too narrow continuous mold step distance
4. Special-shaped bushing, inner hole oval square, electronic hardware factory continuous mold insert, high hardness, good inner hole smoothness, high surface quality of stretched products, long life, suitable for mass production.
5. Bushing Tin coating, hardware and electronics factory specific purpose, Tin coating makes the tungsten carbide bushing smoother and more durable
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