Iron core for engine cooling fan and manufacturing process thereof

A technology of engine cooling and manufacturing process, applied in the direction of inductance/transformer/magnet manufacturing, magnetic core/yoke, inorganic material magnetism, etc., can solve the problem of reducing the overall performance of engine cooling fans, a large number of processing equipment and processing hours, engine cooling fan Scrap and other issues, to achieve the effect of improving material utilization, low manufacturing cost, and light weight

Active Publication Date: 2011-04-27
LAIZHOU SANWANG POWDER METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing iron cores for engine cooling fans use high-quality high-purity low-carbon steel as raw materials and are produced through machining processes. The shortcomings are as follows: due to the complex shape of the iron cores, sometimes machining is difficult or even impossible, and the machining accuracy is low. The material utilization rate is low, so it is difficult to mass-produce iron cores with stable quality and good sealing performance
The above-mentioned iron core products ca

Method used

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  • Iron core for engine cooling fan and manufacturing process thereof
  • Iron core for engine cooling fan and manufacturing process thereof
  • Iron core for engine cooling fan and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Formula 1: The raw material composition and weight percentages of the iron core for the engine cooling fan are: 0.01% of phosphorus to improve magnetic properties (phosphorus is added in the form of phosphorus iron powder), 0.3% of easy cutting agent to improve cutting performance, and 0.3% to improve mold release 0.8% of lubricant for lubricating performance, 0.1% of binder for improving the mixing uniformity of iron phosphorus powder, and the balance is iron powder.

[0045] The iron core manufacturing process steps using recipe 1 are as follows:

[0046] (1) Mixing: Put the above-mentioned various raw material components into the mixing machine in proportion, and mix for 50 minutes.

[0047] (2) Forming: Use a pressing die and a press to cold-press the mixture in step (1) to form an iron core blank with a pressure of 6T / cm 2 .

[0048](3) Sintering: put into a sintering furnace for sintering heat treatment, the sintering temperature is 1110°C, keep warm for 50 minu...

Embodiment 2

[0054] Formula 2: The raw material composition and weight percentage of the iron core are: 0.45% of phosphorus to improve magnetic properties (phosphorus is added in the form of phosphorus iron powder), 0.4% of easy cutting agent to improve cutting performance, and lubricating agent to improve mold release lubrication performance. 0.85% of the agent, 0.2% of the binder to improve the mixing uniformity of the phosphorus iron powder, and the balance is iron powder.

[0055] The manufacturing process steps of the iron core using formula 2 are the same as in embodiment 1.

Embodiment 3

[0057] Formula 3: The raw material composition and weight percentage of the iron core are: 1.0% of phosphorus to improve magnetic properties (phosphorus is added in the form of phosphorus iron powder), 0.6% of easy cutting agent to improve cutting performance, and lubricating agent to improve mold release lubrication performance. 1.0% agent, 0.3% binder to improve the mixing uniformity of iron phosphorus powder, and the balance is iron powder.

[0058] The manufacturing process steps of the iron core using formula 3 are the same as in embodiment 1.

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Abstract

The invention discloses an iron core for an engine cooling fan and a manufacturing process thereof. The iron core is a powder metallurgical material prepared from the following raw materials by weight percent: 0.01-1.0% of phosphorus, 0.1-1.5% of free cutting agents, 0.2-2% of lubricating agents, 0.01-1.5% of binding agents and the balance iron powder. The manufacturing process of the iron core comprises the steps of material mixing, forming, sintering, sealing, reshaping, auxiliary machining and surface treatment. The invention has the following beneficial effects: a powder metallurgy process is simple and reliable, ensures that the production efficiency and material utilization are greatly improved, and is especially suitable for mass production; and the iron core product formed by a mould has the advantages of stable quality, high machining precision, low manufacturing cost, good sealing property, capability of reducing the weight of the engine when the iron core is used for the engine cooling fan, low energy consumption, obvious oil saving effect, improvement of the overall property of the engine cooling fan and the like, and is convenient and safe in assembly.

Description

technical field [0001] The invention belongs to the technical field of engine component manufacturing, and in particular relates to an iron core for an engine cooling fan and a manufacturing process thereof. Background technique [0002] At present, the engine cooling fan is hard-connected to the engine, that is, the cooling fan starts synchronously after the engine is started. When the engine temperature does not reach the temperature of the fan, the cooling fan still rotates synchronously with the engine, which increases the fuel consumption of the engine. With the development of low-carbon economy, the engine cooling technology is developing in an intelligent direction, and the cooling fan speed changes with the engine temperature to achieve the purpose of reducing fuel consumption. The iron core is the key part to adjust the speed in the intelligent cooling fan. [0003] The existing iron cores for engine cooling fans use high-quality high-purity low-carbon steel as raw...

Claims

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Application Information

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IPC IPC(8): H01F3/08H01F1/06H01F1/08H01F41/02B22F3/16B22F3/03
Inventor 李志荣崔祝庆张光孙旭
Owner LAIZHOU SANWANG POWDER METALLURGY
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