With the development of society, molds are widely used in many fields. Mold designers must have rich experience in design and injection molding, and must consider the relationship between these influencing factors and injection molding conditions and their apparent factors. Because most of the working conditions of molds are poor, molds need to have a lot of performance. Now let’s follow DJ Molding to learn about it.
Folding high temperature performance
When the working temperature of the die is relatively high, the hardness and strength will decrease, leading to early wear or plastic deformation of the die and failure. Therefore, the die material should have a high tempering stability to ensure that the die has a high hardness and strength at the working temperature.
When the blank becomes plastic in the mold cavity, it flows and slides along the cavity surface, causing severe friction between the cavity surface and the blank, which will lead to the failure of the mold due to wear. Therefore, the wear resistance of materials is one of the basic and very important properties of moulds.
Hardness is the main factor affecting wear resistance. Generally speaking, the higher the hardness of mold parts, the smaller the wear amount, and the better the wear resistance. In addition, wear resistance is also related to the type, quantity, shape, size and distribution of carbides in materials.
Folding strength and toughness
Most of the working conditions of the dies are very bad, and some of them often bear large impact loads, leading to brittle fracture. In order to prevent sudden brittle fracture of die parts during operation, the die shall have high strength and toughness.
The toughness of the die mainly depends on the carbon content, grain size and microstructure of the material.
Folding fatigue fracture property
In the process of die working, fatigue fracture is often caused by the long-term effect of cyclic stress. Its forms include low energy multiple impact fatigue fracture, tensile fatigue fracture, contact fatigue fracture and bending fatigue fracture.
The fatigue fracture performance of the die mainly depends on its strength, toughness, hardness, and the content of inclusions in the material.
Cold and hot fatigue resistance of folding
Some moulds are heated and cooled repeatedly during the working process, which makes the surface of the mould cavity subject to tensile and pressure variable stress, causing surface cracking and peeling, increasing friction, hindering plastic deformation, reducing dimensional accuracy, and thus leading to mould failure. Cold and hot fatigue is one of the main forms of failure of hot working dies, which should have high cold and hot fatigue resistance.
Folding corrosion resistance
When some molds, such as plastic molds, are working, due to the presence of elements such as chlorine and fluorine in the plastic, they decompose and release strong corrosive gases such as HCI and HF after being heated, which erode the surface of the mold cavity, increase its surface roughness, and aggravate wear failure.
Huizhou DJ Molding Co., Ltd., a China funded enterprise established in 2010, has 150 employees.
Our company is a professional manufacturer of precision molds and precision injection molding products processing enterprises.
The company has introduced advanced mold processing equipment and injection molding equipment from Japan, and has a professional team of engineers and technicians. Effective management ensures mold quality and professional services.
Now our customers are mainly distributed in China, Japan, France and other European and American regions.
It has passed the ISO9001: 2008 certification. Various inspections and guidance from foreign customers in our factory have also promoted the long-term stable development of the company.
The company adheres to the tenet of “standing by sincerity and prospering by faith”, wholeheartedly creates high-quality products, and sincerely looks forward to friendly cooperation and common development with you.
About Huizhou Dj Molding Co., Ltd
Dj Mold is a China mold maker of plastic molds- injection mold, die casting moulds, plastic blow molding, rotational molding, medical plastic injection molding, two shot plastic injection molding, insert molding, overmolding, metal injection molding, micro injection molding, powder injection molding, ceramic injection molding, liquid injection molding, husky injection molding, household mold, casting mold, die mold tool, custom molds, china moulds, rapid prototyping tooling, plastic prototyping tooling, punch press tooling, die and tooling for mobile/ cell phone parts, automotive parts, vacuum cleaners, rechargeable tools, telephones, copiers, computers, multimedia speakers, and many other electronic products and household appliances. And also a plastic product manufacturer, mold manufacturer China– plastic parts, plastic water tank, plastic balls, plastic containers, plastic buckle, plastic anchor, plastic hanger, plastic spoon, plastic pipe fitting, plastic tumble, plastic tableware, plastic cups, plastic bottles, plastic tray, plastic cosmetic container, plastic case, plastic food container, plastic chairs, plastic caps, plastic cap closure, plastic tubes, plastic water pipes, plastic knobs, plastic tubing, plastic utility boxes, plastic racks and so on.
Person: James Yuan
Company: Huizhou Dj Molding Company Limited
Add: LongGang Village,LongXi Town,BoLuo County,HuiZhou City,GuangDong Province, China
Email: [email protected]