Pull rod steel material for intelligent multi-face press and preparation method of pull rod steel material

A technology of steel and tie rods, which is applied in the field of steel, can solve the problems of increasing equipment manufacturing costs, increasing the overall structure size of equipment, and large pulling force of tie rods, and achieves the effects of not easy to wear, high hardness, and high tensile strength

Inactive Publication Date: 2018-05-29
卞政卫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the synthetic equipment of the six-sided top press, the pulling force on the tie rod is very large during the constant pressure work process. Some equipment has exceeded 1,000 tons of pulling force on the tie rod. To ensure that it will not be broken, the pull rod must be continuously increased. Sectional size, which not only increases the overall structural size of the equipment, but also increases the manufacturing cost of the equipment

Method used

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Embodiment Construction

[0016] Below in conjunction with embodiment, the specific embodiment of the present invention is further described. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0017] The invention relates to a tie rod steel material for an intelligent multi-faced top press, the steel material is an improved 40CrNi2Si2MoVA steel material, and the steel material includes chromium Cr: 0.80-0.95, titanium Ti: 1.00-3.00, nickel Ni: 2.00- 2.20, copper Cu: ≤0.35, vanadium V: 0.06~0.10, molybdenum Mo: 0.40~0.55, silicon Si: 1.45~1.82, manganese Mn: 0.65~0.90, lanthanum La: 0.06~0.12, thulium Tm: 0.03~0.08, Ytterbium Yb: 0.05-0.10, Carbon C: 0.40-0.45, Sulfur S: ≤0.010, Phosphorus P: ≤0.010, and the rest are iron Fe and irremovable impurities.

[0018] A preferred embodiment of the present invention is that the steel includes chromium Cr: 0.90, titanium Ti: 1.25, nick...

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Abstract

The invention discloses a pull rod steel material for an intelligent multi-face press. The steel material is an improved 40CrNi2Si2MoVa steel material and comprises, in weight percent, 0.80-0.95% of Cr, 1.00-3.00% of Ti, 2.00-2.20% of Ni, less than or equal to 0.35% of Cu, 0.06-0.10% of V, 0.40-0.55% of Mo, 1.45-1.82% of Si, 0.65-0.90% of Mn, 0.06-0.12% of La, 0.03-0.08% of Tm, 0.05-0.10% of Yb, 0.40-0.45% of C, less than or equal to 0.010% of S, less than or equal to 0.010% of P, the balance Fe and irremovable impurities. The pull rod steel material has the advantages of high tensile strength, good toughness and plasticity, resistant high temperature and low temperature and the like.

Description

technical field [0001] The invention relates to the technical field of steel materials used for the tie rods of a jacking machine, in particular to a tie rod steel material of an intelligent multi-faceted jacking machine and a preparation method thereof. Background technique [0002] The synthetic equipment of the six-sided press is a special equipment for diamond production. In order to ensure the accuracy of the six-sided press, the design usually uses the same six hinged beam assemblies connected by pin hinges, which is simple to manufacture and easy to install. However, due to the unavoidable gap between the pin connection and the fit of this connection method, the cumulative error of the six-sided top press is relatively large, and the spatial position of each piston centerline will change greatly, and the concentricity and verticality are large. , the precision of the press is low. And there is a gap between the hinge beams, and when debris is generated, the debris sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/42C22C38/44C22C38/46C22C38/50C22C33/00C21D8/00
CPCC22C38/50C21D8/005C22C33/00C22C38/005C22C38/02C22C38/04C22C38/42C22C38/44C22C38/46
Inventor 卞政卫
Owner 卞政卫
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