What are the general requirements of steel for plastic mold manufacturing
Time:
2023-06-27 12:06
Source:
What are the general requirements of steel for plastic mold manufacturing? Regarding the requirements for plastic mold manufacturing, today Nordi is here to introduce it to you:
When pressing plastics, it can be divided into two matrix types, one is thermosetting plastics and the other is thermoplastic.
Precision plastic mold
Thermosetting plastics, such as bakelite powder, are pressed and permanently formed under heat and pressure. The bakelite mold is periodically subjected to pressure and continuously heated at a temperature of 150~200 ° C.
Thermoplastics, such as polyvinyl chloride, generally use injection molding, plastic is heated in an independent heating chamber, and then injected into a cooler mold in a softened state, pressure is applied, so that it is cold-formed.
The normal operating temperature of the injection mold is 120~180 ° C, and there are also high to 260 ° C. However, when working, the cavity is usually cooled by water, so the degree of heat, force and wear is light. Only some varieties, such as plastics containing chlorine and fluorine, precipitated harmful gases during pressing, which have a greater erosion effect on the cavity.
According to the working conditions and characteristics of precision plastic molds, the following requirements are put forward for plastic mold steel:
The steel material needs to be very pure to obtain a highly glossy machining surface, for which fewer inclusions, less segregation, dense tissue and high surface hardness are required;
② The surface should be wear and corrosion resistant, requiring a certain surface hardening layer, which should generally be above 45hrc, and the surface finish should remain unchanged for a long time;
(3) It has enough strength and toughness to withstand the load without deformation or damage;
④ Heat treatment deformation is small to ensure interchangeability and matching accuracy;
⑤ With good electrical processing ability.
Related news
Mold manufacturing/stamping die common fault analysis and solution
Stamping die is a special process equipment that processes materials into parts (or semi-finished products) in cold stamping processing, called cold stamping die (commonly known as cold stamping die). Stamping is a pressure processing method that uses a die mounted on a press to apply pressure to the material at room temperature to produce separation or plastic deformation, so as to obtain the required parts.
What are the general requirements of steel for plastic mold manufacturing
When pressing plastics, there are two types of substrates: thermosetting plastics and thermoplastic plastics.
Finishing die technology products and technology development focus
Complex parts continuous fine stamping die is the cutting-edge basic technology of fine stamping technology, which is the leading research, hoping to drive the whole fine stamping technology of our country to improve significantly. The key technology of precision die design and manufacturing is studied to realize the rapid improvement of precision die technology in China and shorten the gap with advanced countries as soon as possible by taking synchronous gear ring, clutch plate and longitudinal composite continuous precision die as a breakthrough.
Hardware mold accessories grinding precautions
Grinding is a process that is often carried out after long-term use of hardware mold accessories. The abrasive particles embedded on the lashing tool will be polished on the surface of the workpiece during the grinding process. In the process of relative movement between the lashing tool and the workpiece, the rust on the surface of the hardware mold accessories and the damage will be gradually smoothed and become more smooth. After grinding process of hardware mold accessories in the service life will become longer, the processing effect will be more significant. So what do you need to pay attention to when grinding high-quality hardware mold accessories
The precision of the mold will be higher and higher
With the continuous development of the economy, people's living standards continue to improve, the spiritual and material cultural requirements are getting higher and higher, this demand also led to the continuous development and innovation of the home industry, the industry for home hardware demand is growing, home hardware industry shows different changes.
In addition to requiring high enough strength and toughness in the work of high-precision mold parts, its surface performance is crucial to the working performance and service life of high-precision mold parts. The improvement of these properties, relying solely on the improvement and improvement of the base material is very limited and uneconomical
Contact us
Contact: Miss Xiao
Phone: 13763290703
Tel: +86 0769-82759188
Email: yuan.xiao@meiya.ac.cn
Website: www.meiya.ac.cn
Address: No. 81, Wangsha Road, Hongmei Town, Dongguan City, Guangdong Province, China
Scan
Consultation