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Material-saving heat-resisting antifriction self-lubricating material

A self-lubricating material, heat-resistant technology, applied in the manufacture of tribological parts and components that serve in a wide temperature range environment, the field of material-saving heat-resistant friction-reducing self-lubricating materials, can solve problems such as quality defects, and achieve the goal of using Long life, stable high temperature strength, low cost effect

Inactive Publication Date: 2012-03-28
CENT IRON & STEEL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The raw material Q345R used for the coiling device for coil production, as the surface of the red-hot steel billet contacts the surface of the device, the temperature is as high as 950°C, causing the surface material of the device to form an oxide layer rapidly. As the high-temperature oxidation continues, the surface oxide layer continues to peel off and oxidize. The skin adheres to the surface of the steel plate, causing quality defects in subsequent processing

Method used

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Embodiment 1

[0035] Example 1: According to the chemical composition of the material designed in the present invention, three kinds of wear-resistant, anti-friction, stainless and self-lubricating new materials were prepared. , and carried out experiments and comparisons according to the existing materials used for different purposes on site. The specific chemical composition of GAE01 material is shown in Table 1. The compressive strength of the material is 1450MPa at 20°C, 665MPa at 500°C, the hardness at room temperature is HRc56, and the friction coefficient is 0.12 at 20°C and 0.25 at 500°C. This material is used to produce pinch rolls for metallurgical strip steel and compared with the original material QT700 (see Table 2 XNE01 for the specific chemical composition), its service conditions and performance are shown in Table 3.

Embodiment 2

[0036] Example 2: See Table 1 for the specific chemical composition of the GAE02 material. The compressive strength of the material is 1580MPa at 20°C, 720MPa at 500°C, the hardness at room temperature is HRc60, and the friction coefficient is 0.15 at 20°C and 0.22 at 500°C. This material is used in chemical fiber production to compare the surface of the stirring rotor blade with the original imported high-temperature coating material (see Table 2 XNE02 for specific chemical composition), and the use conditions and performance are shown in Table 3.

Embodiment 3

[0037] Example 3: The specific chemical composition of the GAE03 material is shown in Table 1. The compressive strength of the material is 1630MPa at 20°C, 730MPa at 500°C, the hardness at room temperature is HRc60, and the friction coefficient is 0.17 at 20°C and 0.24 at 500°C. This material is used in the metallurgical coil production crimping device to compare with the original material Q345R (see Table 2 XNE03 for the specific chemical composition), and its service conditions and properties are shown in Table 3.

[0038] The chemical composition table (mass %) of the embodiment of the present invention of table 1

[0039]

[0040]

[0041] Note: Ni<0.30 in the smelting composition is the residual amount, and the control P<0.025.

[0042] Table 2 main chemical composition list of materials in the prior art

[0043]

[0044] The parts and components prepared by the embodiment of the present invention are compared with the industrial field performance of the parts ...

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Abstract

The invention discloses a material-saving heat-resisting antifriction self-lubricating material, belonging to the technical field of metal self-lubricating friction materials, and is especially suitable for preparing parts serving under a temperature of 300-1050 DEG C. The material comprises the following ingredients: 0.75-0.95 wt% of C, 0.6-0.8 wt% of Si, 1.5-2.5 wt% of Mn, 6.5-9.5 wt% of Cr, 0.55-0.65 wt% of Mo, 0.65-0.75 wt% of Cu, 2.5-3.5 wt% of Al, 0.25-0.45 wt% of S, 0.05-0.10 wt% of N, 0.05-0.10 wt% of B, 0.10-0.20 wt% of V, 0.05-0.15 wt% of RE, no larger than 0.015 wt% of P, no largerthan 0.3 wt% of Ni, and the balance consisting of Fe, wherein, RE comprises Ce, Y and the like. Compared with materials in the prior art, the self-lubricating material disclosed herein has the advantages of low cost, wide heat-resisting region, high high-temperature hardness, high thermal fatigue resistance, high antifriction quality and high wear resistance, high temperature oxidation resistance, industrial wet and hot corrosion resistance, low tendency of cracking and chipping in use, small erosion of abrasive materials, and long service life.

Description

technical field [0001] The invention belongs to the technical field of metal self-lubricating friction materials, and in particular provides a material-saving heat-resistant friction-reducing self-lubricating material. The self-lubricating material is suitable for the manufacture of metal grinding devices in the fields of metallurgy, mining, coal, electromechanical, petrochemical, machinery, etc. , guides, etc.) and other types of metal sliding friction parts as a whole or surface materials, especially suitable for the manufacture of tribological parts and products that serve under wide temperature range environmental conditions (300°C-1050°C). Background technique [0002] In my country's modern industrial production sites, the supporting friction parts made of metal materials rarely have the functions of anti-friction and self-lubricating; at present, wear and tear is one of the important reasons for energy and material consumption in the field of industrial production, an...

Claims

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Application Information

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IPC IPC(8): C22C38/60
Inventor 林生李翔徐晓春苗育青麻三清董洪山仇必宁林书新
Owner CENT IRON & STEEL RES INST
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