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3Cr17NiMo-ESR plastic mold steel

A technology of 3cr17nimo-esr and 1.3cr17nimo-esr, applied in the field of 3Cr17NiMo-ESR plastic mold steel, can solve the problem that the service life of the mold cannot meet the design requirements and the gap, etc., achieve excellent corrosion resistance and polishing performance, and easy welding repair , high economic benefits

Inactive Publication Date: 2019-10-01
湖北志联模具科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although its overall performance is relatively excellent, there is still a certain gap compared with imported mold steel, and the service life of the manufactured mold cannot meet the design requirements. Therefore, the steel processing technology is adjusted to further enhance the 3Cr 17 The performance of NiMo plastic mold steel is the focus of current research and development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 3Cr of this embodiment 17 NiMo-ESR plastic mold steel, which contains the following components by weight: C: 0.35%, Si: 0.8%, Mn: 0.6%, Cr: 16.8%, Ni: 0.8%, Mo: 1.0%, S: 0.015% , P: 0.015%, the balance is Fe, the plastic mold steel has a hardness of HRC32; the quenching temperature of the steel billet in the processing process of the plastic mold steel is 1035 ° C, the holding time is 20min, oil cooling; softening annealing The temperature is 800°C, and the furnace is cooled to HB≤230; the tempering temperature is 590°C; the specification of the billet forging circle is φ400mm.

Embodiment 2

[0015] 3Cr of this embodiment 17 NiMo-ESR plastic mold steel, which contains the following components by weight: C: 0.30%, Si:: 0.85%, Mn:: 0.90%, Cr: 17.50%, Ni: 0.65%, Mo: 1.25%, S: 0.020%, P: 0.020%, the balance is Fe, and the plastic mold steel has a hardness of HRC30; the quenching temperature of the steel billet during the processing of the plastic mold steel is 1020°C, the holding time is 30min, and the quenching liquid is cooled The softening annealing temperature is 780°C, and the furnace is cooled to HB≤230; the tempering temperature is 620°C; the thickness of the steel billet flat is 200mm, and the width is 700mm.

Embodiment 3

[0017] 3Cr of this embodiment 17 NiMo-ESR plastic mold steel, which contains the following components by weight: C: 0.40%, Si: 0.95%, Mn: 0.87%, Cr: 16.00%, Ni: 1.00%, Mo: 0.80%, S: 0.020% , P: 0.020%, the balance is Fe, the plastic mold steel has a hardness of HRC36; the quenching treatment temperature of the steel billet in the processing process of the plastic mold steel is 1050 ° C, the holding time is 10min, oil cooling; softening annealing The temperature is 820°C, and the furnace is cooled to HB≤230; the tempering temperature is 580°C; the specification of the billet forging circle is φ350mm.

[0018] The plastic mold steel produced in Examples 1-3 of the present invention has better processability and polishing performance than similar products at home and abroad, as shown in Table 1 below.

[0019] Table 1 Brands of foreign mold steel products similar to the products of the present invention

[0020] Brand comparison Austria BOHLER German DIN simil...

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PUM

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Abstract

The invention discloses tempering type 3Cr17NiMo-ESR plastic mold steel. The tempering type 3Cr17NiMo-ESR plastic mold steel comprises, by weight percent, 0.30%-0.40% of C, not larger than 1.00% of Si, not larger than 1.00% of Mn, 16.00%-17.50% of Cr, 0.60%-1.00% of Ni, 0.80%-1.30% of Mo, not larger than 0.020% of S, not larger than 0.035% of P and the balance Fe. The plastic mold steel is pre-hardened till the hardness HRC ranges from 30 to 36. The plastic mold steel is good in acid proofing effect, the mirror finishing performance is excellent, the plastic mold steel is suitable for direct mold milling machining and manufacturing and is especially suitable for making a plastic mold with excellent corrosion resistance and polishing performance, and the plastic mold steel is greatly used for machining molds of high-grade transparent decorations, cosmetics containers, food containers and the like.

Description

technical field [0001] The invention relates to the technical field of plastic mold steel, in particular to a 3Cr 17 NiMo-ESR plastic mold steel. Background technique [0002] Plastic mold steel started relatively late in my country. With the rapid expansion of market demand, domestic mold steel research has set off an upsurge, and the series of mold steel independently developed by my country has gradually expanded. At present, there are more than 20 plastic mold steels included in industry standards. The plastic mold steel system in my country has been formed, such as the commonly used 3Cr 17 NiMo plastic mold steel is a new type of plastic mold steel designed on the basis of Swedish S-136 and German 1.2316 steel grades. Although its overall performance is relatively excellent, there is still a certain gap compared with imported mold steel, and the service life of the manufactured mold cannot meet the design requirements. Therefore, the steel processing technology is adju...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/04C22C38/44C21D1/18C21D1/32
CPCC21D1/18C21D1/32C22C38/02C22C38/04C22C38/44
Inventor 王晓鹏程爱萍
Owner 湖北志联模具科技有限公司
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