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Compressor connecting rod

A compressor and connecting rod technology, applied in the field of powder metallurgy, can solve problems such as abnormal parts matching or lubrication, abnormal compressor operation, and infiltration of coolant, etc., achieving less processing volume, scientific and reasonable material composition ratio, and improved efficiency. Effect

Inactive Publication Date: 2018-03-13
ANHUI BOGUTE ELECTRICAL & MECHANICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with aluminum-based materials, iron-based materials have higher mechanical properties and can work under higher loads, but it is difficult to produce parts with uniform density and high density (>90% theoretical density), and the thermal conductivity of iron is relatively Poor, must use coolant during machining
In the case of incomplete surface sealing treatment, the coolant will seep into the connecting rod matrix and gradually overflow during use
The aging of the overflowed coolant will cause abnormal matching of parts or lubrication, resulting in abnormal operation of the compressor, such as increased noise, abnormal pressure, etc., or even shutting down directly

Method used

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  • Compressor connecting rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A compressor connecting rod, which comprises the following raw materials weighed by weight: 1-1.6 wt% of silicon, 0-4 wt% of copper, 0.8-2.0 wt% of magnesium, 0.1-0.3% of iron, and 0-2.1 wt% of tin , Magnet powder 1-1.6wt%, magnesium nitride 1-2wt%, carbon powder 0.8-0.2wt%, titanium dioxide 0.1-0.7wt%, titanium powder 0.5-0.8, tantalum nitride 1-2wt%, niobium powder 0.03- 0.05wt%, Al is the balance.

Embodiment 2

[0019] A compressor connecting rod, which comprises the following raw materials weighed by weight: 1-1.6 wt% of silicon, 0-4 wt% of copper, 0.8-2.0 wt% of magnesium, 0.1-0.3% of iron, and 0-2.1 wt% of tin , Magnet powder 1-1.6wt%, magnesium nitride 1-2wt%, carbon powder 0.8-0.2wt%, titanium dioxide 0.1-0.7wt%, titanium powder 0.5-0.8, tantalum nitride 1-2wt%, niobium powder 0.03- 0.05wt%, Al is the balance.

[0020] Preferably, the manufacturing method of the compressor connecting rod is:

[0021] (1) Mix and stir iron, magnet powder, copper, magnesium, niobium powder, and tin at 80-100°C for 60-80 minutes, and add 0.8-2.0% lubricant for mixing,

[0022] (2) Then heat to 60-130°C, then add magnesium nitride, carbon powder, and titanium dioxide powder, cool to 100-120°C, put it into a mold, press it into a billet, and then cool it naturally to room temperature. The pressing pressure is 100-100°C. 200MPa, pressing pressure 150-600MPa, forming density 2.30-2.60g / cm3;

[0023] ...

Embodiment 3

[0027] A compressor connecting rod, which comprises the following raw materials weighed by weight: 1-1.6 wt% of silicon, 0-4 wt% of copper, 0.8-2.0 wt% of magnesium, 0.1-0.3% of iron, and 0-2.1 wt% of tin , Magnet powder 1-1.6wt%, magnesium nitride 1-2wt%, carbon powder 0.8-0.2wt%, titanium dioxide 0.1-0.7wt%, titanium powder 0.5-0.8, tantalum nitride 1-2wt%, niobium powder 0.03- 0.05wt%, Al is the balance.

[0028] Preferably, the manufacturing method of the compressor connecting rod is:

[0029] (1) Mix and stir iron, magnet powder, copper, magnesium, niobium powder, and tin at 80-100°C for 60-80 minutes, and add 0.8-2.0% lubricant for mixing,

[0030] (2) Then heat to 60-130°C, then add magnesium nitride, carbon powder, and titanium dioxide powder, cool to 100-120°C, put it into a mold, press it into a billet, and then cool it naturally to room temperature. The pressing pressure is 100-100°C. 200MPa, pressing pressure 150-600MPa, forming density 2.30-2.60g / cm3;

[0031] ...

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Abstract

The invention provides a compressor connecting rod, and relates to the field of powder metallurgy. The compressor connecting rod comprises raw materials including, by weight, 1%-1.6% of silicon, 0-4%of copper, 0.8%-2.0% of magnesium, 0.1%-0.3% of iron, 0-2.1% of tin, 1%-1.6% of magnet powder, 1%-2% of magnesium nitride, 0.2%-0.8% of carbon dust, 0.1%-0.7% of titanium dioxide, 0.5%-0.8% of titanium powder, 1%-2% of tantalum nitride, 0.03%-0.05% of niobium powder and the balance Al. The compressor connecting rod is provided; a preparing method for the compressor aluminum alloy connecting rod isprovided, and the aluminum alloy connecting rod is high in material using rate, low in production cost and suitable for batch production; and the material component ratio of the connecting rod is scientific and reasonable, the preparation process is simple, the beneficial effects of being less in machining amount and high in material using rate are achieved, the production cost is reduced, the production efficiency is improved, the specific strength of the prepared connecting rod is high, the wear-resisting property is good, the compressor design is better optimized, and the compressor efficiency is improved.

Description

technical field [0001] The invention relates to the field of powder metallurgy, in particular to a compressor connecting rod. Background technique [0002] The function of the connecting rod in the compressor is to connect the crankshaft and the piston and transmit force, and convert the circular motion of the crankshaft into the linear reciprocating motion of the piston. The main production methods of connecting rods are forging, powder metallurgy, and casting. The mechanical properties of forging are the highest, while casting is the lowest, and the powder metallurgy method is in the middle. Compared with forging and casting, powder metallurgy has the advantages of less machining, high dimensional accuracy, uniform structure, less segregation and inclusions, and high production efficiency. At present, powder metallurgy connecting rods are mainly made of iron-based materials. Compared with aluminum-based materials, iron-based materials have higher mechanical properties and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C21/08C22C21/00C22C32/00C22C1/05C22C1/10B22F5/00
CPCC22C21/02B22F5/00C22C1/05C22C21/00C22C21/08C22C32/0005
Inventor 刘朝能黄先州葛勤贵袁正发宛新芬
Owner ANHUI BOGUTE ELECTRICAL & MECHANICAL TECH CO LTD
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