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Special mold steel material for high-energy spiral pressure machine

A technology of screw press and die steel, applied in the field of hot forging die steel and large hammer forging die steel, can solve problems such as low efficiency, and achieve the effect of reducing production cost and high production efficiency

Active Publication Date: 2014-09-03
WUXI TURBINE BLADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention provides a special mold steel material applied to the SPKA22400 high-energy screw press, which can solve the problem of low production efficiency when using traditional 5CrNiMo mold steel, and can effectively reduce the cost of mold materials.

Method used

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  • Special mold steel material for high-energy spiral pressure machine

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Embodiment 1

[0008] A special mold steel material for SPKA22400 high-energy screw press, which contains the following materials in weight percentage: carbon (C) 0.50, manganese (Mn) 1.00, silicon (Si) 0.1, chromium (Cr) 0.70, nickel (Ni ) 1.60, molybdenum (Mo) 0.25, vanadium (V) 0.15, and the rest are iron (Fe) and inevitable inclusions.

Embodiment 2

[0010] A special mold steel material for SPKA22400 high-energy screw press, which contains the following materials in weight percentage: carbon (C) 0.60, manganese (Mn) 0.70, silicon (Si) 0.40, chromium (Cr) 1.00, nickel (Ni ) 1.40, molybdenum (Mo) 0.325, vanadium (V) 0.10, and the rest are iron (Fe) and inevitable inclusions.

Embodiment 3

[0012] A special mold steel material for SPKA22400 high-energy screw press, which contains the following materials in weight percentage: carbon (C) 0.55, manganese (Mn) 0.85, silicon (Si) 0.20, chromium (Cr) 0.85, nickel (Ni ) 1.80, molybdenum (Mo) 0.40, vanadium (V) 0.125, and the rest are iron (Fe) and inevitable inclusions.

[0013] The comparison of the mechanical properties of the special mold steel material used in the SPKA22400 high-energy screw press and 5CrNiMo, 5CrNiMoV / 56CrNiMoV7 in the present invention is shown in the following table:

[0014]

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Abstract

The invention provides a special mold steel material for an SPKA22400 high-energy spiral pressure machine, for both solving the problem that the production efficiency is low when conventional 5CrNiMo mold steel is used and effectively lowering the material cost of a mold. The special mold steel material for the SPKA22400 high-energy spiral pressure machine is characterized by comprising the following materials in percentage by weight: 0.50-0.60% of C, 0.70-1.00% of Mn, less than or equal to 0.40% of Si, 0.70-1.00% of Cr, 1.40-1.80% of Ni, 0.25-0.40% of Mo, 0.10-0.15% of V and the balance of Fe and inevitable impurities.

Description

technical field [0001] The invention relates to the field of hot forging die steel, in particular to the field of large hammer forging die steel, in particular to a special die steel material applied to SPKA22400 high-energy screw press. Background technique [0002] The traditional large-tonnage forging equipment in forging factories at home and abroad are hydraulic presses and forging hammers. After the 1990s, large-tonnage screw presses began to be widely used. The SPKA22400 high-energy screw press is the first large-tonnage screw press introduced from Bohler in my country. The world's second SPKA22400 high-energy screw press has a maximum impact force of 35,500T, a rated impact force of 22,400T, and a continuous permissible impact force of 28,000T. Therefore, its extremely large impact force is a huge test for mold materials. [0003] Domestic large-scale hammer forging die steel generally adopts 5CrNiMo steel with lower price, but the heat strength and wear resistance of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/46
Inventor 刘新权
Owner WUXI TURBINE BLADE
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