A kind of low-density impact-resistant metal material and its manufacturing method

A technology of metal materials and production methods, which is applied in the field of low-density impact-resistant metal materials and the production of low-density impact-resistant metal materials, can solve the problems of lack of mechanical properties, high density, and low plasticity, so as to improve anti-wear ability and anti-corrosion Impact ability, low density and good plasticity

Active Publication Date: 2016-04-20
GUANGXI SHENGLONG METALLURGICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But these materials lack properties such as mechanical properties, low plasticity and high density

Method used

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  • A kind of low-density impact-resistant metal material and its manufacturing method

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Experimental program
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Effect test

Embodiment 1

[0028] A low-density impact-resistant metal material, the innovation of which is: the following mass percentages are included: 1.5-3.1% C, 1.2-1.9% Si, 1.69-2.32% Mn, 0.033-0.042% S, 0.021-0.025% P , 1.8-3.6% Cr, 1.6-3.6% Ni, 1.56-2.25% Mo, 0.45-0.68% Co, 0.63-1.18% Fe, and the rest is Cu.

[0029] A method for manufacturing a low-density impact-resistant metal material, including the treatment steps of melting period and reduction period, and its innovative point is that the specific steps are as follows:

[0030] (1) Select material: select the material with the following mass percentages: 1.8-2.6%C, 1.4-1.7%Si, 1.77-2.01%Mn, 0.036-0.040%S, 0.023-0.025%P, 2.3-3.2%Cr, 2.1 -3.1% Ni, 1.66-1.98% Mo, 0.54-0.61% Co, 0.77-0.98% Fe, the rest is Cu;

[0031] (2) Pouring: pour the material in step (1) at a temperature of 1250-1520°C, and control the pouring time to 2-3 hours;

[0032] (3) Cooling in the metal mold billet: demoulding at 780-930°C, and putting it into the heat preserv...

Embodiment 2

[0036] On the basis of Example 1, change the ratio of metal material raw materials, specifically 1.8-2.6% C, 1.4-1.7% Si, 1.77-2.01% Mn, 0.036-0.040% S, 0.023-0.025% P, 2.3 -3.2% Cr, 2.1-3.1% Ni, 1.66-1.98% Mo, 0.54-0.61% Co, 0.77-0.98% Fe, and the rest is Cu.

[0037] According to the production method and parameter selection of Example 1, the pouring temperature is set at 1250-1320°C; the demoulding temperature is 880°C; and the tempering temperature is 535°C.

Embodiment 3

[0039] On the basis of Example 1 or 2, change the ratio of metal material raw materials, specifically 2.2% C, 1.5% Si, 1.89% Mn, 0.038% S, 0.024% P, 2.6% Cr, 2.7% Ni, 1.78 %Mo, 0.58% Co, 0.87% Fe, and the rest is Cu.

[0040] According to the production method and parameter selection of Example 1, the casting temperature is set to 1280°C; the demoulding temperature is 880°C; and the tempering temperature is 535°C.

[0041] The product performance parameter of above embodiment is as shown in table 1 below:

[0042]

[0043]It can be seen from the above table 1 that, compared with the metal materials in the prior art, the density of the metal material of the present method is greatly reduced, and the impact resistance and wear resistance are greatly enhanced, and the present invention has great substantial progress.

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Abstract

The invention discloses a low density impact resistant metal material which comprises the following materials by weight: 1.5-3.1% of C, 1.2-1.9% ofSi, 1.69-2.32% of Mn, 0.033-0.042%of S, 0.021-0.025% of P, 1.8-3.6% of Cr, 1.6-3.6% of Ni, 1.56-2.25% of Mo, 0.45-0.68% of Co, 0.63-1.18% of Fe, and balance of Cu. The low density impact resistant metal material has the quality characteristics of strong mechanical properties, good plasticity and low density and the like. Through addition of a small amount of 1.6-3.6% of Ni, 1.56-2.25% of Mo, 0.45-0.68% of Co and 0.63-1.18% of Fe, the metal material self density is reduced further, the metal material quality is effectively guaranteed, by once casting forming, quenching or nitriding is not needed, the antiwear and impact resistant ability can be improved, at the same time, the processing time is saved, the manufacturing cost is reduced, and the production efficiency is increased.

Description

technical field [0001] The invention relates to a low-density impact-resistant metal material, and also relates to a manufacturing method of the low-density impact-resistant metal material, which belongs to the field of metal material manufacturing. Background technique [0002] Metals, especially ferrous metal materials represented by carbon steel, are used most frequently because they can obtain high strength and hardness and are inexpensive compared with other metals. Since ferrous metals are inferior to chromium, nickel, and cobalt in corrosion resistance and heat resistance, problems in durability are likely to occur due to generation of rust or growth of oxide films. [0003] The application range of metal materials is extremely wide. Among them, there are many metal materials used in automobile manufacturing. Automobiles have brought great convenience to people, but at the same time, they have also brought some shortcomings. Since the birth of automobiles, developers ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/60C22C38/58C22C37/10C22C33/04C22C33/08
Inventor 李瑞国
Owner GUANGXI SHENGLONG METALLURGICAL CO LTD
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