Method for manufacturing bimetal composite wear resistant tube through centrifugal molding double fluids

A technology of centrifugal casting and manufacturing method, which is applied in the field of double-liquid centrifugal casting to manufacture bimetal composite wear-resistant pipes. The effect of safety and long service life

Inactive Publication Date: 2006-04-19
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In metallurgy, mining, electric power, petroleum, construction, coal and other industries, materials are transported through pipelines under pressure, and the pipelines are subjected to high pressure and severe wear, which brings very large economic losses to related enterprises. Because the pipe made of a single material cannot obtain the harmony of various mechanical properties such as wear resistance-weldability-impact resistance, the overall performance is poor, and it cannot meet the actual application conditions. Materials with different physical properties must be compounded. , in order to reflect the highest performance of various components, and obtain pipeline products with good comprehensive performance
In the current centrifugal casting method for bimetallic com

Method used

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  • Method for manufacturing bimetal composite wear resistant tube through centrifugal molding double fluids
  • Method for manufacturing bimetal composite wear resistant tube through centrifugal molding double fluids
  • Method for manufacturing bimetal composite wear resistant tube through centrifugal molding double fluids

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[0022] Example 1:

[0023] Double-liquid centrifugal casting manufacturing method of bimetal composite wear-resistant pipe, see for process flow Figure 4 , See the structure diagram of the composite wear-resistant pipe during the manufacturing process figure 1 , Follow the steps below in sequence:

[0024] a) Coating preparation. The water-based graphite coating is prepared according to the volume ratio of water to graphite powder of 1:0.3~1.0, the particle size of graphite powder is generally 10~100um;

[0025] b) Spraying on the inner surface of the mold tube. Spray the prepared water-based graphite paint uniformly on the inner surface of the centrifuge mold tube 1, so that the bimetal composite wear-resistant tube can be pulled out of the centrifuge mold tube 1, and its thickness is 0.05-0.15mm;

[0026] c) Dry paint and mold tube encapsulation. Use flame to dry the paint on the inner surface of the mold tube; encapsulate both ends of the centrifuge mold tube 1, and the encaps...

Example Embodiment

[0030] Example 2:

[0031] Manufacture the bimetal composite wear-resistant straight pipe with an inner diameter of Φ133mm, a length of 6m, and an inner lining thickness of 5mm. Process flow see Figure 4 , See the structure diagram of the composite wear-resistant pipe during the manufacturing process figure 1 , Follow the steps below:

[0032] a) Coating preparation. The water-based graphite coating is prepared according to the volume ratio of water to graphite powder of 1:0.5;

[0033] b) Spraying on the inner surface of the mold tube. Spray the prepared water-based graphite paint uniformly on the inner surface of the centrifuge mold tube 1, the thickness of which is about 0.1mm;

[0034] c) Dry paint and mold tube encapsulation. Use flame to dry the paint on the inner surface of the mold tube 1; and encapsulate the two ends of the centrifuge mold tube 1;

[0035] d) Manufacture of outer sleeve. Molten steel, melt A3 steel melt in an intermediate frequency furnace, and measure 0...

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Abstract

A technology for manufacturing the antiwear bimetal tube by dual-liquid casting includes such steps as spraying graphite paint onto inner surface of a moulding pipe on centrifugal machine, baking, closing, high speed rotating while pouring molten steel, solidifying to become external steel tube, pouring molten antiwear alloy, solidifying, cooling and cleaning.

Description

technical field [0001] The invention relates to a method for manufacturing conveying pipes in metallurgy, mining, electric power, petroleum, construction, coal and other industries, in particular to a method for manufacturing bimetallic composite wear-resistant pipes by double-liquid centrifugal casting. Background technique [0002] In metallurgy, mining, electric power, petroleum, construction, coal and other industries, materials are transported through pipelines under pressure, and the pipelines are subjected to high pressure and severe wear, which brings very large economic losses to related enterprises. Because the pipe made of a single material cannot obtain the harmony of various mechanical properties such as wear resistance-weldability-impact resistance, the overall performance is poor, and it cannot meet the actual application conditions. Materials with different physical properties must be compounded. , in order to reflect the highest performance of various compon...

Claims

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Application Information

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IPC IPC(8): B22D13/02B22D19/16
Inventor 许云华岑启宏
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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