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Exhaust pipe of a new type of high-performance material and its processing and preparation technology

A high-performance, exhaust pipe technology, used in exhaust devices, mechanical equipment, machines/engines, etc., can solve the problems of easy rust and corrosion, loud exhaust pipe noise, etc., to achieve low production costs, smooth exhaust, The effect of excellent formability

Active Publication Date: 2019-09-03
浙江三元龙兴科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, many automobile exhaust pipes have the following problems: when the exhaust pipe is working, it must be able to withstand the strong vibration generated when the engine is stopped. rust corrosion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] S1, weigh a certain amount of C 11 parts, Mn 13 parts, Si 5 parts, Mo 3 parts, Ni 22 parts, Cr 8 parts, Ti 6 parts, B 5 parts, Zr 3 parts, the balance is Fe and unavoidable Pour the impurities into the smelting furnace for high-temperature heating and smelting to obtain a mixed metal liquid;

[0041] S2. The mixed metal liquid obtained in step S1 is passed into nitrogen gas for refining and degassing to obtain a refined mixed metal liquid;

[0042] S3, adding the refined mixed metal liquid obtained in step S2 to the continuous casting machine for continuous casting operation to obtain alloy plates;

[0043] S4, the alloy plate obtained in step S3 is subjected to double-sided copper plating operation through an electroplating machine;

[0044] S5. The copper-plated alloy sheet is quickly rolled into a tube through a rolling machine, and finally copper brazed into a double-layer alloy tube through a welding furnace;

[0045] S6. Pass the double-layer alloy pipe obtained in step S5...

Embodiment 2

[0053] S1, weigh a certain amount of 12 parts of C, 18 parts of Mn, 8 parts of Si, 4 parts of Mo, 32 parts of Ni, 11 parts of Cr, 7 parts of Ti, 8 parts of B8, 4 parts of Zr, the balance being Fe and unavoidable impurities Pour into the smelting furnace for high-temperature heating and smelting to obtain mixed metal liquid;

[0054] S2. The mixed metal liquid obtained in step S1 is passed into nitrogen gas for refining and degassing to obtain a refined mixed metal liquid;

[0055] S3, adding the refined mixed metal liquid obtained in step S2 to the continuous casting machine for continuous casting operation to obtain alloy plates;

[0056] S4, the alloy plate obtained in step S3 is subjected to double-sided copper plating operation through an electroplating machine;

[0057] S5. The copper-plated alloy sheet is quickly rolled into a tube by a rolling machine, and finally copper brazed into a double-layer alloy tube by a welding furnace;

[0058] S6. Pass the double-layer alloy pipe obt...

Embodiment 3

[0066] S1. Weigh a certain amount of C 8 parts, Mn 10 parts, Si 3 parts, Mo 2 parts, Ni 20 parts, Cr 2-11 parts, Ti 3 parts, B 4 parts, Zr 1 part, the balance is Fe and The inevitable impurities are poured into the smelting furnace for high-temperature heating and smelting to obtain a mixed metal liquid;

[0067] S2. The mixed metal liquid obtained in step S1 is passed into nitrogen gas for refining and degassing to obtain a refined mixed metal liquid;

[0068] S3, adding the refined mixed metal liquid obtained in step S2 to the continuous casting machine for continuous casting operation to obtain alloy plates;

[0069] S4, the alloy plate obtained in step S3 is subjected to double-sided copper plating operation through an electroplating machine;

[0070] S5. The copper-plated alloy sheet is quickly rolled into a tube by a rolling machine, and finally copper brazed into a double-layer alloy tube by a welding furnace;

[0071] S6. Pass the double-layer alloy pipe obtained in step S5 thr...

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PUM

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Abstract

The invention discloses an exhaust pipe made from novel high-performance materials and a manufacturing process of the exhaust pipe. The exhaust pipe is prepared from, by weight, 8-12 parts of C, 10-18 parts of Mn, 3-8 parts of Si, 2-4 parts of Mo, 20-32 parts of Ni, 2-11 parts of Cr, 3-7 parts of Ti, 4-8 parts of B, 1-4 parts of Zr, and the balance Fe and unavoidable impurities. The automobile exhaust pipe can bear strong vibration when an engine is stopped and started and can work well in harsh conditions. In addition, due to the novel materials of the exhaust pipe, the noise problem can be greatly relieved, so that the exhaust pipe can be used more widely and is durable, resistant to corrosion and high in strength, and the manufacturing process is simple in method and low in production cost and can be suitable for mass production.

Description

Technical field [0001] The invention relates to the technical field of exhaust pipes, in particular to a new type of high-performance material exhaust pipe and its processing and preparation process. Background technique [0002] As my country's economy continues to grow rapidly, people's living standards are getting higher and higher, especially automobiles have become a new consumption hotspot for residents in today's society. At present, energy saving and emission reduction have become a competitive weapon in the automotive industry. Therefore, the exhaust system of the automobile is becoming more and more important. The addition of a small amount of Mn, Nb and other elements to the ferroalloy makes the ferroalloy have good deep drawability and can improve Other performance of the exhaust system. Therefore, the present invention provides a new type of material for automobile exhaust system, which has excellent formability, corrosion resistance, high temperature resistance, go...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N13/08C22C38/04C22C38/02C22C38/12C22C38/08C22C38/18C22C38/14C22C38/32
Inventor 刘华杨涛
Owner 浙江三元龙兴科技股份有限公司