Dongguan Hongyuan Mold Steel Products Co

【Hongyuan】【Hongyuan】Steel
【Hongyuan】Mold steel
【Hongyuan】American Fencola
【Hongyuan】
【Hongyuan】3 clinker< br/> 【Hongyuan】3 prices
【Hongyuan】3 heat treatment materials
【Hongyuan】hard materials
【Hongyuan】steel plates
【Hongyuan】round bars< br/> Basic information Chinese brand:
Germany:
Scope of application Pre-hardened plastic mold steel. Widely used in China, the factory hardness is 3~, suitable for large and medium-sized precision molds, suitable for long-term production of high-quality plastic molds, and used for large mold bases. This steel has good machinability and can be generally polished.
Chemical composition
















Performance comparison of American brands:
In the mold repair area
It is a type of mold welding material< br/> The earliest one was, and it came out one after another
The following are some hardness, specifications, introduction and comparison of ,
Hardness... is mainly used to repair plastic injection molds and heat-resistant molds. (cast copper mold).
Hardness-...In addition to the advantages of enhanced hardness, it is suitable for argon welding wire for plastic injection molds. It has good machinability and corrosion resistance after welding, and the material has uniform hardness and high hardness.
Hardness 3...The hardness is the same as that of steel, but in comparison, the polishability is good, and the post-weld machinability and photo-etching properties are excellent.
Hardening treatment In order to increase the life of the mold to more than 10,000 mold times, the pre-hardened steel can be quenched and tempered at low temperature
< r::\r\~\\\\\..American Fencolla< br/> This is achieved by hardening the fire. When quenching, first preheat at -℃ for -hour, then keep it at -℃ for a certain period of time (at least hours), put it in oil and cool it to -℃. The oil will be air-cooled. After quenching, the hardness can reach up to 0℃. In order to prevent cracking, it should be carried out immediately at low temperature. After fire treatment and tempering, the hardness can be maintained above
Nitriding treatmentNitriding treatment can obtain a high-hardness surface structure, and the surface hardness after nitriding reaches
The mold life can reach more than 10,000 times, and the nitrided layer It has the characteristics of dense structure and smoothness, and the mold release property and resistance to moisture air and alkali corrosion are improved.
Delivery certificate: The steel is delivered in annealed and hot-rolled condition.
Factory hardness: pre-hardened~
Material characteristics ● Uniform hardness, good polishing performance and photo-etching performance, and good processing performance.
●Steel processed by vacuum degassing and refining is pure and suitable for plastic molds that require polishing or etching. ●Supplied in pre-hardened state, it can be directly used for mold processing without further heat treatment, shortening the construction period.
●After forging and rolling, the structure is dense, ultrasonic inspection, no pores, pinhole defects.
The material is suitable for plastic molds and mold bases such as TV front casings, telephones, water dispensers, vacuum cleaners, etc.
●Thermoplastic plastic injection molds and extrusion molds. ●Thermoplastic blow molding mold.
●Heavy-loaded main parts of the mold.
●Cold structural parts.
●Commonly used in the manufacture of TV casings, washing machines, refrigerator inner casings, buckets, etc.
The usage method has been pre-hardened to (3), which is equivalent to the state in Sweden and Germany, and can be directly used for molding processing, and With good dimensional stability, pre-hardened steel can meet the needs of general purposes, and the mold life can reach mold times
Thermal processing technology of steel
Project
Heating temperature/°C
Open forging temperature/℃
Final forging temperature/℃
Cooling
Steel ingot
~
~

Pit cooling
Steel billet< br/> ~
~

Sand cooling or slow cooling

Quenching temperature chromium-nickel alloy steel (also known as material). Material properties: Company B produces a total of 3 kinds of materials, namely,,. The material has high hardness, good toughness and strong tensile strength, but it is not resistant to corrosion and has poor wear resistance. Among them, the material is obtained through material heat treatment before leaving the factory. The material is the lowest among the three materials, equivalent to material 3. It has poor polishing performance and a production life of less than 10,000 times. The material has good polishing performance and can be used in transparent thermal polishing molds, where the polishing performance is higher than. The production life of these two materials is 30,000 times. Heat treatment requirements: The entire steel material has been pre-hardened before leaving the factory, and is no longer suitable for quenching treatment. Materials are prone to bursting after quenching, and can only be surface nitrided. The requirements for oxidation are surface..., and the hardness is ~. Processing requirements: The material cutting performance is average. When the minimum size of the material is greater than 3, and if there are a large number of wire cutting or EDM processes during the processing, a tempering must be performed after the wire cutting or EDM is completed. .