Preparing method for automobile air conditioner pipe

A technology for automobile air conditioning and air conditioning pipes, which is applied to manufacturing tools, casting equipment, metal processing equipment, etc., can solve the problems of easy cracking or leakage, low ductility of aluminum alloy, and insufficient anti-corrosion performance. The effect of reducing the pulling force, reducing the workload, and reducing the grinding workload

Inactive Publication Date: 2017-05-31
苏州富艾姆工业设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the thermal conductivity of aluminum is lower than that of copper, it is much higher than that of iron, and the specific gravity of aluminum is low. Using aluminum alloy to replace copper or iron to manufacture air-conditioning heat exchange tubes has many a...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment provides a method for preparing an automobile air-conditioning tube, in which a protective layer is provided in the air-conditioning tube, and the preparation of the air-conditioning tube is carried out according to the following steps:

[0033] (1) According to the shape of the automobile air-conditioning pipe, use quartz sand, water glass and bentonite as the molding materials to make the corresponding casting mold, and open the gate on the casting mold, and then blow the casting mold with warm air, and then Put it in an oven and dry it at 150-190°C for use;

[0034] (2) Prepare the various components of the raw material of the air-conditioning pipe, and send each component to the EBT electric arc furnace for rough refining to melt and oxidize each component. The LF refining furnace carries out refining and degassing work to obtain a molten solution. The smelting temperature is 500°C, the smelting time is 2 hours, and then it is left to stand at 400°C ...

Embodiment 2

[0052] This embodiment provides a method for preparing an automobile air-conditioning tube, in which a protective layer is provided in the air-conditioning tube, and the preparation of the air-conditioning tube is carried out according to the following steps:

[0053] (1) According to the shape of the automobile air-conditioning pipe, use quartz sand, water glass and bentonite as the molding materials to make the corresponding casting mold, and open the gate on the casting mold, and then blow the casting mold with warm air, and then Put it in an oven and dry it at 150-190°C for use;

[0054] (2) Prepare the various components of the air-conditioning pipe raw materials, and send each component to the EBT electric arc furnace for rough refining to melt and oxidize each component. The rough refining temperature is 300 ° C, and the smelting time is 2 hours, and then sent to Refining and degassing in LF refining furnace to obtain molten liquid, smelting temperature is 750°C, smelti...

Embodiment 3

[0072] This embodiment provides a method for preparing an automobile air-conditioning tube, in which a protective layer is provided in the air-conditioning tube, and the preparation of the air-conditioning tube is carried out according to the following steps:

[0073] (1) According to the shape of the automobile air-conditioning pipe, use quartz sand, water glass and bentonite as the molding materials to make the corresponding casting mold, and open the gate on the casting mold, and then blow the casting mold with warm air, and then Place it in an oven and dry it at 170°C for use;

[0074] (2) Prepare the various components of the air-conditioning pipe raw materials, and send each component to the EBT electric arc furnace for rough refining to melt and oxidize each component. The rough refining temperature is 250°C, and the smelting time is 1h, and then sent to The LF refining furnace carries out refining and degassing work to obtain a molten solution. The smelting temperature...

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PUM

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Abstract

The invention discloses a preparing method for an automobile air conditioner pipe. The preparing method is simple and easy to implement. The prepared automobile air conditioner pipe has good corrosion resistance, and the service life of the automobile air conditioner pipe is prolonged.

Description

technical field [0001] The invention relates to an automobile accessory, in particular to a preparation method of an automobile air-conditioning tube. Background technique [0002] At present, the material of air-conditioning pipes is mainly iron alloy or copper alloy, but because the thermal conductivity of iron alloy pipes is not high, the thermal conductivity of copper pipes is high, but the cost of copper is also high, and the proportion of copper is large, which increases the overall performance of the air conditioner. weight. [0003] Although the thermal conductivity of aluminum is lower than that of copper, it is much higher than that of iron, and the specific gravity of aluminum is low. Using aluminum alloy to replace copper or iron to manufacture air-conditioning heat exchange tubes has many advantages, but the existing aluminum alloy is in When finally processed into thin-walled pipes, because the ductility of aluminum alloy is lower than that of copper, it is ea...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C21/08C22C1/02B22C9/02B22C9/24C22F1/04C22F1/047C08L83/07C08L71/12C08K13/02C08K3/34C08K5/098C08K3/36C08K3/26
CPCC22C21/00B22C9/02B22C9/24C08K2201/011C08K2201/014C08L83/04C08L2203/18C22C1/026C22C21/08C22F1/04C22F1/047C08L71/123C08K13/02C08K3/34C08K5/098C08K3/36C08K2003/265C08K3/346
Inventor 翁华明
Owner 苏州富艾姆工业设备有限公司
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