Home > News > Daily News > What are the main performance requirements of plastic mould?(1)
Daily News
Industry News
Company news
Latest News

Gifts of love in ancient China

Jade pendants The ancient Chinese usually gave their lovers something small so that they could easily take it everywhere. A jade pendant is a good cho...

what is mild steel

Mild steel is a type of carbon steel with a low amount of carbon – it is actually also known as “low carbon steel.” Although ranges vary depending ...

10 Differences between a Businessman and Entrepreneur

10 Differences between a Businessman and Entrepreneur Business people and entrepreneurs have many similarities.However, they are not the same kind of ...

What is ALOCROM 1200 surface treatment

What is ALOCROM 1200surface treatment Alocrom 1200 is a rapidnon-electrolytic dip process which gives excellent protection against corrosionto both pa...

What is Kydex material

What is Kydexmaterial Kydex is a line of thermoplasticacrylic-polyvinyl chloride materials manufactured by Sekisui SPI. It has a widevariety of applic...

What is Over mold?

Overmolding is also called 2 times injection molding in China. Compared with the third-party material bonding, overmolding process makes the process f...

What is Alodine 5200 surface treatment

What is Alodine 5200surface treatment Alodine 5200 treatment is a chromiumfree product and specifically formulated for treating aluminium and its allo...

What is Black Oxide?

Black Oxide, blackening, oxidizing, oxiding, black passivating, gun bluing . . . these terms all refer to the process of forming a black iron oxide on...

Privacy Policy

We will not collect and store your information in any form.

How and When to Add Bend Reliefs to Sheet Metal Parts

What is a Bend Relief? A bend relief is nothing more than two small incisions cut into a piece of sheet metal to free the metal between the two. It se...
Contact Us
Vice General Manager: Ivy
E-mail: sales910@xy-global.com, sales.china@xy-global.com
Postal Code: 518129
Off Add: Room1702,17F,Building#4,Tianan Cloud Park,No.2018 Xuegang Rd.,Longgang District,Shenzhen.
Factory Add:Daling Industrial Area,Shaling,Fenggang Town,Dongguan City Contact Now

What are the main performance requirements of plastic mould?(1)

What are the main performance requirements of plastic mould?(1)

liuweiqiong liuweiqiong 2017-09-29 20:30:07
1. heat resistance, with the emergence of high-speed molding machinery, plastic products production speed up. As the molding temperature is generally between 160~350 degrees, some of the liquidity is not good, forming speed and speed, will make the mold part of the molding, surface temperature in a very short period of time more than 400 degrees. When the mold work temperature is higher, will cause the mold hardness and the strength to drop, causes the mold early wear or produces the plastic distortion to be invalid. In order to ensure the accuracy and deformation of the die in use, die steel should have higher heat resistance. In order to reduce temperature rise, die steel should have good thermal conductivity and lower thermal expansion coefficient.

2. at the working temperature with sufficient temperature, the working conditions of the mold are very bad, and some of them often bear a larger load, which leads to brittle fracture. Extrusion molding pressure is large, generally 10~35MPa. Therefore, in order to prevent the die parts from breaking suddenly at work, the mold must have higher strength and toughness.

3. wear resistance with the expansion of plastic products used in plastic, often need to add inorganic materials such as glass fiber reinforced plastic additives due to, to join, so that liquidity plastic is greatly reduced, resulting in die wear, the mold has good abrasion resistance.

4. corrosion resistant fire resistant agent and polyvinyl chloride added in ABS resin, in the molding process may emit corrosive gases, and sometimes damaged die rust in the air channel outlet, it requires a good corrosion resistance of die steel.