Getting conditions just right for quality precision effective moulds – Taizhou Huangyan know how….

March 3rd – The Taizhou Huangyan HAOHAO Plastic Mould Factory was founded in 2008 and has over 200 staff. It is yet another Chinese member of IMD Online. Its business centre, covers an area of 17,000 square meters and the business holds the ISO9001 certification and uses advanced CAD/CAN systems.

advanced technology 

It operates a high-precision CNC machine centre, backed by advanced technology and is equipped with top range machinery. An extensive range of high quality, middle and large sized moulds are produced by the company at competitive prices for use in the auto, electricity, daily necessity and other industries. 

Mould types produced include cable tie; auto; air cooler; pipe fitting and more.  Varied quality moulds are produced according to pattern samples, 3D drawings or to die casting and small precision mould patterns. Here below, the Company’s experts reflect on the requirement of the right working conditions for effective plastic moulds …

Abrasion resistance

When the blank is plastically deformed in the mould cavity, it flows and slides along the cavity surface, which causes severe friction between the cavity surface and the blank, which causes the mould to fail due to wear. Therefore, the wear resistance of the material is one of the most basic and important properties of the mould.

Hardness is the main factor affecting wear resistance. In general, the higher the hardness of the mould parts, the smaller the amount of wear and thus the better the wear resistance. In addition, abrasion resistance is also related to the type, quantity, form, size and distribution of carbides in the material.


Most of the working conditions of the mould are very harsh, and some often bear large impact loads, which leads to brittle fracture. In order to prevent the mould parts from being suddenly brittle during work, the mould must have high strength and toughness. The toughness of the mould mainly depends on the carbon content, grain size and microstructure of the material.

Fatigue fracture performance.

During the work of the mould, under the long-term effect of cyclic stress, it often causes fatigue fracture. Its forms are small energy, multiple impact, fatigue fracture, tensile fatigue, fracture contact, fatigue fracture and bending fatigue fracture. The fatigue fracture performance of a mould mainly depends on its strength, toughness, hardness, and the content of inclusions in the material.

High temperature performance

When the working temperature of the mould is higher, the hardness and strength will be reduced, leading to early wear of the mould or plastic deformation and failure. Because the mould material should have high resistance to tempering to ensure that the mould has a higher hardness and strength at the working temperature.