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Pre-hardened high-mirror surface acid-proof plastic cement mold steel material and preparation method thereof

A plastic mold and mold steel technology, applied in the field of pre-hardened high-mirror acid-proof plastic mold steel materials and its preparation, can solve the problem of high prices, mold material requirements that cannot fully meet the standards, and the inability to produce high-end mirror-surface acid-proof plastic mold steel Material and other issues, to achieve the effect that is conducive to collision and floating, and the exterior is uniform

Inactive Publication Date: 2019-03-01
朱经辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the current high-end mirror-surface acid-proof plastic mold steels that are all imported from abroad, the price is high, and the requirements for mold materials cannot be fully met, and domestic manufacturers are currently unable to produce high-end mirror-surface acid-proof plastic mold steel materials. , and provide a kind of pre-hardening high specular anti-acid plastic mold steel material and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A pre-hardened high-mirror anti-acid plastic mold steel material in this embodiment, the mold steel material contains the following components by weight percentage: C: 0.06%, Si: 0.22%, Mn: 1.0%, Mo: 0.35% , Ni: 3.2%, Cu: 1.0%, Al: 1.0%, P: ≤0.005%, S: ≤0.008%, and the balance is Fe.

[0043] A kind of preparation method of pre-hardened high mirror surface acid-proof plastic mold steel material of the present embodiment comprises the following steps:

[0044] (1) Put the carbon steel with C<0.1% and Mn<0.5% into the electric arc furnace and smelt it into molten steel at a high temperature above 2800°C, then take out the molten steel for component analysis, and transfer the ladle into the refining furnace for refining;

[0045] (2) According to the analysis results of molten steel composition in step (1), the amount of high-purity silicon powder, manganese powder, molybdenum powder, nickel plate, copper rod or copper sheet, and aluminum rod is prepared, and the above-men...

Embodiment 2

[0054] A pre-hardened high-mirror anti-acid plastic mold steel material in this embodiment, the mold steel material contains the following components by weight percentage: C: 0.05%, Si: 0.35%, Mn: 0.8%, Mo: 0.25% , Ni: 3.5%, Cu: 0.8%, Al: 1.0%, P: ≤0.005%, S: ≤0.008%, the balance is Fe, the metal structure of the mold steel material is austenite, it has HRC38- 42 hardness.

[0055] A kind of preparation method of pre-hardened high mirror surface acid-proof plastic mold steel material of the present embodiment comprises the following steps:

[0056] (1) Put the carbon steel with C<0.1% and Mn<0.5% into the electric arc furnace and smelt it into molten steel at a high temperature above 2800°C, then take out the molten steel for component analysis, and transfer the ladle into the refining furnace for refining;

[0057] (2) According to the analysis results of molten steel composition in step (1), the amount of high-purity silicon powder, manganese powder, molybdenum powder, nick...

Embodiment 3

[0066] A pre-hardened high-mirror anti-acid plastic mold steel material in this embodiment, the mold steel material contains the following components by weight percentage: C: 0.08%, Si: 0.15%, Mn: 1.6%, Mo: 0.45% , Ni: 3.0%, Cu: 1.2%, Al: 0.8%, P: ≤0.005%, S: ≤0.008%, the balance is Fe, the metal structure of the mold steel material is austenite, it has HRC38- 42 hardness.

[0067] The preparation method of the pre-hardened high-mirror anti-acid plastic mold steel material of this embodiment is the same as that of Example 1, except that in the preparation process, in step (7), the non-directional circular steel billet is forged into a medium-sized steel billet with a thickness of 200mm and a width of 500mm. .

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Abstract

The invention discloses a pre-hardened high-mirror surface acid-proof plastic cement mold steel material and a preparation method thereof. The plastic cement mold steel material is prepared from the following ingredients in percentage by weight: 0.05 to 0.08 percent of C, 0.15 to 0.35 percent of Si, 0.8 to 1.6 percent of Mn, 0.25 to 0.45 percent of Mo, 3.0 to 3.5 percent of Ni, 0.8 to 1.2 percentof Cu, 0.8 to 1.0 percent of Al, less than or equal to 0.005 percent of P, less than or equal to 0.008 percent of S and the balance of Fe; the metal structure of the mold steel material is austenite and has the hardness of HRC38-42. The steel material has excellent corrosion resistance, ductility, toughness and abrasion resistance; the whole hardening performance, the polishing performance and thesculpturing performance are good; meanwhile, the production cost is low; large-scale blanks can be produced; the national quality standard is met; even the polishing performance is much superior to that of a similar imported product; the economic benefit is extremely high.

Description

technical field [0001] The invention relates to the technical field of plastic mold steel materials, in particular to a pre-hardened high mirror surface acid-proof plastic mold steel material and a preparation method thereof. Background technique [0002] At present, the main problem faced by the domestic mold material industry is reflected in the prominent contradictions in the variety structure. Although the output of mold steel is large, the variety is single, especially there are few high-end varieties, and high-end plastic mold steel is almost impossible to produce. High-end mirror acid-proof plastic mold steel, mainly used in dust-proof dust, TV filter plate, cosmetic box mirror, wrinkle processing mold; office automation equipment, auto parts electric discharge processing mold; transparent product or transparent product mold requiring extremely high finish Therefore, it is required to have the following characteristics: excellent corrosion resistance, excellent overal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/08C22C38/12C22C38/16C21D8/00C22C33/04
CPCC21D8/005C22C33/04C22C38/02C22C38/04C22C38/06C22C38/08C22C38/12C22C38/16
Inventor 朱经辉
Owner 朱经辉
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