Automobile exhaust pipe and processing method thereof

A technology of automobile exhaust and processing method, which is applied in the direction of exhaust devices, gas chambers, gas passages, etc., can solve the problems of easy rust and corrosion, high noise of exhaust pipes, etc., and achieve low production cost, smooth exhaust, and easy processing Create simple and convenient effects

Inactive Publication Date: 2017-11-21
HUBEI JUNTING AUTO PARTS
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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

[0034] S1. The first choice is to weigh 3 parts of C, 4 parts of Si, 2 parts of Mo, 1.0 parts of Mg, 2 parts of Ni, 5 parts of Cr, and 3 parts of Ti. The balance is Fe and unavoidable impurities, and pour it into the melting furnace for high temperature heating For smelting, when the temperature reaches 1600°C, 1.5 parts of Cu, 1 part of Al and 1.8 parts of Mn are added in the form of Cu-Al-Mn pre-alloy. When the melting temperature is 1600°C, the mixed metal liquid is obtained in 1.5 hours during smelting ;

[0035] S2. Passing the mixed metal liquid obtained in step S1 into nitrogen gas for refining and degassing to obtain the refined mixed metal liquid;

[0036] S3, adding the refined mixed metal liquid obtained in step S2 into a continuous casting machine for continuous casting operation, the continuous casting temperature is 1000° C., to obtain an alloy plate;

[0037] S4, performing double-sided copper plating on the alloy plate obtained in step S3 through an electropla...

Embodiment 2

[0043] S1. The first choice is to weigh 4 parts of C, 5 parts of Si, 3 parts of Mo, 1.5 parts of Mg, 2.5 parts of Ni, 2 parts of Cr, and 4 parts of Ti, and the balance is Fe and unavoidable impurities. Heating and smelting, when the temperature reaches 1650°C, add 2 parts of Cu, 1.2 parts of Al and 2 parts of Mn in the form of Cu-Al-Mn pre-alloy. When the melting temperature is 1700°C, the mixed metal is obtained in 2 hours during smelting liquid;

[0044] S2. Passing the mixed metal liquid obtained in step S1 into nitrogen gas for refining and degassing to obtain the refined mixed metal liquid;

[0045] S3, adding the refined mixed metal liquid obtained in step S2 into a continuous casting machine for continuous casting operation, the continuous casting temperature is 1100°C, and an alloy plate is obtained;

[0046]S4, performing double-sided copper plating on the alloy plate obtained in step S3 through an electroplating machine;

[0047] S5, then the alloy plate after copp...

Embodiment 3

[0052] S1. The first choice is to weigh 5 parts of C, 4 parts of Si, 4 parts of Mo, 1.3 parts of Mg, 3 parts of Ni, 6 parts of Cr, and 4 parts of Ti, and the balance is Fe and unavoidable impurities. Heating and smelting, when the temperature reaches 1700°C, add 2.1 parts of Cu, 1.5 parts of Al and 2.5 parts of Mn in the form of Cu-Al-Mn pre-alloy. When the melting temperature is 1850°C, the mixed metal is obtained after 2 hours of smelting liquid;

[0053] S2. Passing the mixed metal liquid obtained in step S1 into nitrogen gas for refining and degassing to obtain the refined mixed metal liquid;

[0054] S3, adding the refined mixed metal liquid obtained in step S2 into a continuous casting machine for continuous casting operation, the continuous casting temperature is 1200° C., and an alloy plate is obtained;

[0055] S4, performing double-sided copper plating on the alloy plate obtained in step S3 through an electroplating machine;

[0056] S5, then the alloy plate after ...

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Abstract

The invention discloses an automobile exhaust pipe. The automobile exhaust pipe is prepared through the following raw materials in parts by weight: 3-5 parts of C, 1.8-2.5 parts of Mn, 3.8-5 parts of Si, 2-4 parts of Mo, 1-1.5 parts of Al, 1.5-2.1 parts of Cu, 1.0-1.5 parts of Mg, 2-3 parts of Ni, 2-6 parts of Cr, 3-7 parts of Ti, and the balance Fe and inevitable impurities. The automobile exhaust pipe is capable of bearing strong vibration of an engine in stopping and starting and can work normally under an extreme condition; the exhaust pipe is manufactured through novel materials, so that the problem of noise can be greatly reduced; the automobile exhaust pipe is wide in applicable scope, durable, resistant to corrosion, and high in intensity; in addition, the preparation technology is simple in method, low in production cost, and suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of automobile exhaust pipes, in particular to an automobile exhaust pipe and a processing method thereof. Background technique [0002] As my country's economy continues to grow rapidly, people's living standards are getting higher and higher, especially cars have become a new consumption hotspot for residents in today's society. At present, energy saving and emission reduction has become a competitive weapon in the automobile industry, so the exhaust system of the automobile is becoming more and more important. Adding a small amount of elements such as Mn and Nb to the ferroalloy can make the ferroalloy have good deep drawability and improve Other properties of the exhaust system. [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. Therefore...

Claims

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Application Information

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IPC IPC(8): C22C37/10C22C37/08C22C33/08B23P15/00F01N13/16
CPCC22C37/10B23P15/00C22C33/08C22C37/08F01N13/16F01N2530/04
Inventor 唐少华李敏张德超
Owner HUBEI JUNTING AUTO PARTS
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