Factors Affecting the Quality of the Screw Die

09 Nov.,2021

Fasteners are the most widely used in various sectors of the national economy, the use of the largest number of basic mechanical parts, and the breeding of a screw is essential is "mold", or "die". Do you find it difficult to make good molds? Look at the following ten guidelines!

 

Fasteners are the most widely used in various sectors of the national economy, the use of the largest number of basic mechanical parts, and the breeding of a screw is essential is "mold", or "Sharp Top Chain".
Most of the plastic products are processed and molded by the mold. Although different molds are made up of different parts, they are mainly processed by changing the physical state of the molded material to achieve the shape of the item.

Do you find it difficult to make good molds? Look at the following ten guidelines!

 

Drywall Nail Die

Drywall Nail Die

 

Mold steel

Steel is a decisive factor in the quality of the mold, choose a reasonable steel is the most important. Different plastics to use different steel, such as the requirements of high polishing and corrosion resistance; mold steel to use and mold life of the corresponding materials to avoid unnecessary waste; plating can be effective modification of the mold steel, some need for high brightness and corrosion-resistant plastic parts can use plating to enhance and improve the performance of steel.

 

Structure design

Mature mold structure should not only take into account the shrinkage rate of product material properties, molding temperature, elastic tensile deformation coefficient, etc., but also take into account the cooling water circuit, the speed of opening and closing the mold, etc. Reasonable mold structure can effectively extend the mold life and ensure the smooth production of the mold, improve efficiency and reduce costs.

 

Mold processing

Reasonable process arrangement can not only speed up the production cycle, shorten the processing time and effectively save the cost, but also can ensure the stability and extend the life of the mold in the production process. In addition, poor processing may also affect the mold action, reduce the life of the mold, resulting in the mold in the production process of pulling crack or even broken.

 

Standard parts

Although standard parts are not directly involved in molding, they control the operation of the whole mold. Good standard parts should be able to wear-resistant, hard enough, high precision, and should not be deformed.

 

The Mould of The Cropping

The Mould of The Cropping

 

Polishing/skin grain

The effect of polishing will be directly reflected to the plastic parts, but also can help and complement the mold action, especially for the mold release is very meaningful. Some mold production is not smooth is because the polishing is not in place, too much resistance, difficult to release the mold, and even top white, top crack, etc.

 

Mold assembly

The assembly process must not be omitted or wrong order, the light will lead to product defects, affect the production, the heavy will completely damage the mold, resulting in scrap. In addition, we must pay attention to the cleaning of the mold, especially the waterway, screw holes, must blow clean inside the iron chips, otherwise the customer is very angry.

 

Mold maintenance

Every time after the use of the mold should be a comprehensive maintenance, especially the molding part and the main action parts of the anti-rust. Because the mold in the production process to receive water, there may be water in the installation or removal process to get on the mold, so be sure to ensure that the mold dry, and then brush a layer of oil protection.

 


See here, do you know which link is wrong? Do not want to be eliminated from the market, must do excellence! For a high-quality screw, easy to be ignored mold parts is an important part, it can play a great indirect role in improving the quality of mold production! 

FENGFENG offers: High quality, reasonable price, on time delivery, good After-sale service, strict quality controll, and all the mold are automotic. Please contact our experts if you need to buy the molds, we can customize according to your design.