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Heating method before forging for manufacturing engine connecting rod by powder metallurgy

An engine connecting rod, powder metallurgy technology, applied in the direction of improving process efficiency, improving energy efficiency, etc., can solve the problems of long heating time, poor temperature uniformity, easy oxidation, etc., to reduce oxidation, reduce heating time, and improve production efficiency. Effect

Inactive Publication Date: 2013-09-04
山东莱芜金华辰粉末冶金制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] At present, resistance furnace heating is widely used at home and abroad, the heating time is long, the transfer time between product processes is long, easy to oxidize, poor temperature uniformity, and low energy utilization rate

Method used

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  • Heating method before forging for manufacturing engine connecting rod by powder metallurgy
  • Heating method before forging for manufacturing engine connecting rod by powder metallurgy

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Embodiment Construction

[0019] The relevant technical contents not mentioned below can adopt or learn from the prior art.

[0020] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0021] Such as figure 1 As shown, a powder metallurgy engine connecting rod heating method before forging uses electromagnetic induction high-frequency heating for heating before forging, 1 is an induction coil, and 2 is an engine connecti...

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Abstract

The invention discloses a heating method before forging for manufacturing an engine connecting rod by powder metallurgy. An electromagnetic induction method is employed to heat a connecting rod perform before forging the engine connecting rod; and the connecting rod is forged after being heated. The heating method can significantly reduce heating time, minimize oxidation and increase production efficiency, and facilitates realizing automatically continuous production.

Description

technical field [0001] The invention relates to a method for heating an engine connecting rod made by powder metallurgy before forging. Background technique [0002] According to reports, my country's automobile output in 2010 was about 14 million. The engine connecting rods of domestic automobiles are generally processed and produced by traditional ordinary forging and machining methods. In order to improve engine performance, some automobile manufacturers use powder metallurgy forging imported from abroad. Connecting rods, replacing existing products. [0003] Therefore, the engine connecting rods produced by domestic traditional methods have been difficult to meet the requirements of high quality, high precision, high efficiency, low consumption and low cost in the production of automobiles and other industries. [0004] In the last century, Germany and the United States began to study iron powder forging, and successfully developed a new type of metal plastic forming pro...

Claims

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Application Information

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IPC IPC(8): C21D1/42
CPCY02P10/25
Inventor 石勇石萌韩香美
Owner 山东莱芜金华辰粉末冶金制品有限公司