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Amorphous inner-coated pipe and method for producing same

A manufacturing method, amorphous technology, applied in coating, manufacturing tools, metal material coating process, etc., can solve the problems of inconvenient coating, difficult coating operation, difficulty in applying pipes with small inner diameters, etc., and achieve improvement Effect of Coating Density

Pending Publication Date: 2021-07-23
美泰金属科技私人有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the case of using the above-mentioned existing manufacturing method, not only will it cause the problem of inconvenient coating itself, but also because of the limitation of the spraying device, the smaller the inner diameter of the pipe, the more difficult the coating operation will be.
In particular, it is particularly difficult when the inner diameter of the pipe is within 3 inches or the ratio of the inner diameter to the length is more than 1:2. Therefore, even in the context of customers requiring a large amount of pipes with excellent corrosion resistance / abrasion resistance as described above, it is necessary Difficult to apply to tubing with a small inner diameter

Method used

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  • Amorphous inner-coated pipe and method for producing same
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  • Amorphous inner-coated pipe and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to Embodiment 8

[0089] [Example 1 to Example 8: Production of Iron-based Amorphous Alloy Powder]

[0090] After being supplied to the inside of the atomizer under the nitrogen atmosphere according to the composition shown in the following table 1 and the composition of the weight ratio (weight ratio), atomize in a molten state and cool according to the cooling rate recorded in the following table 1, thereby The iron-based amorphous alloy powders of Examples 1 to 8 were produced.

[0091] 【Table 1】

[0092]

[0093] *D50 (unit: μ)

[0094] As shown in the above Table 1, the embodiments of the present invention include the first component to the fourth component in a specific content range, and in 10 1 to 10 4 Degrees per second cooling rate to produce alloy powders with an average powder diameter in the range of 5μ to 50μ.

Embodiment 9 to Embodiment 16

[0095] [Example 9 to Example 16: Manufacture of a pipe material formed with an iron-based amorphous coating]

[0096] On one surface of a sheet made of carbon steel, spray-coat the iron-based amorphous alloy powders of Examples 1 to 8 with a thickness of 0.1 mm, respectively, and then coat the above-mentioned coated sheet with A 3-inch-diameter pipe with an amorphous inner surface coating was produced by coiling it into the shape of a pipe with the cloth surface constituting the inner surface, and finally joining the seams to keep the sheet in the shape of the pipe.

[0097] In addition, a Sulzer Metco Diamond Jet unit was used to perform the spraying at 45% Oxygen flow, 48% Propane flow, 52% Air flow, Feeder rate 336%, Nitrogen flow (Nitrogen flow) 15 ~ 20RPM and stand-off distance (Stand-off) 12 inches under the conditions of implementation.

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Abstract

An amorphous inner-coated pipe and a method for producing same are disclosed, the pipe having an amorphous alloy powder coated on an inner surface thereof, thereby the pipe is capable of maintaining an amorphous structure even after coating such that coating density, corrosion resistance, and wear resistance of the pipe may be improved. The amorphous inner-coated pipe comprises: a pipe; and a coating layer on an inner surface of the pipe, wherein the coating layer is an alloy of a material different from that of the pipe or a metal layer and the pipe has an amorphous phase ratio of 90% or more.

Description

technical field [0001] The present invention relates to a pipe with an amorphous inner surface coating, and more particularly to a pipe with an amorphous alloy powder coated on the inner surface of the pipe, which can maintain the amorphous structure after coating, thereby improving the coating of the pipe Density, corrosion resistance, and wear resistance pipe with an amorphous inner surface coating and method of making the same. Background technique [0002] Steel (Iron and Steel) is a basic raw material commonly used in all heavy chemical industries, so the steel industry is an industry with a huge forward linkage effect (the economic effect of the development of a certain industry on other industries) . The above-mentioned steel is mainly made into plates, rods and pipes, among which pipes play an important role like human blood vessels in various industrial fields such as chemical industry, oil refining and power generation, especially in chemical industry. In industr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/06C23C4/14C22C45/02B23K26/262B21C37/08
CPCC23C4/06F16L58/08B21C37/08C22C45/02C23C4/14C23C4/18C23C4/129C23C4/131C23C4/134C23C4/08C23C30/00C23C4/16B21C37/09
Inventor 金忠年
Owner 美泰金属科技私人有限公司
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