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Production process of aluminum alloy air intake pipe

A production process, aluminum alloy technology, applied in metal processing equipment, equipment for feeding molten metal into casting molds, manufacturing tools, etc., can solve the problems of slow production cycle, water leakage, low production efficiency, etc., to improve production efficiency and Yield rate, reduce production cost, improve the effect of qualified rate

Inactive Publication Date: 2019-08-30
SHANDONG HONGYUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the sand casting process are low production efficiency, high energy consumption, poor product dimensional accuracy, rough appearance, and low yield
The disadvantages of the metal mold gravity casting process are slow production cycle, low process yield, serious water leakage and high production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A 6-cylinder engine intake pipe, the product weight is 8kg, the average wall thickness is 5mm, and the material is ZL107. It is required to have a smooth and smooth appearance, no casting defects, and no leakage at 0.6MPa for 5 minutes.

[0023] The production process of the aluminum alloy intake pipe adopts a low pressure casting process, comprising the following steps:

[0024] (1) Using the method of making cores from coated sand, using gas production ≤ 9mL / g, room temperature flexural strength ≥ 4MPa, thermal flexural strength ≥ 4MPa, 40-70 mesh thermosetting phenolic resin and high-temperature calcined sand to make inner cavity sand Core, the surface of the sand core in the inner cavity is coated with talcum powder coating and then dried;

[0025] (2) Combine and seal the dried inner cavity sand core with the metal mold outer mold coated with Henkel 395 paint;

[0026] (3) Use a vacuum pump to forcibly exhaust the sealed mold. After vacuuming, pour the ZL107 alumi...

Embodiment 2

[0030] A 6-cylinder engine intake pipe, the product weight is 2kg, the average wall thickness is 5mm, and the material is ZL107. It is required to have a smooth and smooth appearance, no casting defects, and no leakage at 0.6MPa for 5 minutes.

[0031] The production process of the aluminum alloy intake pipe adopts a low pressure casting process, comprising the following steps:

[0032] (1) Using the method of making cores from coated sand, using gas production ≤ 9mL / g, room temperature flexural strength ≥ 4MPa, thermal flexural strength ≥ 4MPa, 40-70 mesh thermosetting phenolic resin and high-temperature calcined sand to make inner cavity sand Core, the surface of the sand core in the inner cavity is coated with talcum powder coating and then dried;

[0033] (2) Combine and seal the dried inner cavity sand core with the metal mold outer mold coated with Henkel 395 paint;

[0034] (3) Use a vacuum pump to forcibly exhaust the sealed mold. After vacuuming, pour the ZL107 alumi...

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Abstract

The invention belongs to the production and manufacturing field of engine air intake pipes, and particularly relates to a production process of an aluminum alloy air intake pipe. The production process adopts a low-pressure casting process and comprises the following steps of (1) adopting a precoated sand core manufacturing method for manufacturing an inner cavity sand core, coating a refractory coating on the surface of the inner cavity sand core, and then drying; (2) combining and sealing the dried inner cavity sand core and a metal outer mold coated with a heat-insulating coating; (3) adopting a vacuum pump for forcedly exhausting the sealed mold, vacuumizing, then adopting a quick mold filling method for pouring an aluminum alloy metal solution, stopping air exhaust after the metal solution is solidified, and obtaining a workblank; and (4) carrying out cleaning and a bulge test on the workblank, and obtaining an aluminum alloy air intake pipe finished product. According to the production process of the aluminum alloy air intake pipe provided by the invention, low-pressure casting is carried out by adopting forced exhausting and quick mold filling processes, so that the production efficiency and the production yield are greatly improved, and the product qualification rate is improved to be above 98 percent.

Description

technical field [0001] The invention belongs to the field of production and manufacture of engine intake pipes, and in particular relates to a production process of aluminum alloy intake pipes. Background technique [0002] The engine intake pipe refers to the air pipe that guides the gas required for the combustion of the machine into the interior of the machine. The intake pipe must ensure a sufficient flow area, avoid turning and sudden changes in section, and improve the surface finish of the pipe to reduce resistance. [0003] At present, in the field of engine aluminum alloy intake pipe and water pipe production, there are two important process methods: sand casting and metal gravity casting. The disadvantages of the sand casting process are low production efficiency, high energy consumption, poor product dimensional accuracy, rough appearance, and low yield. The disadvantages of the metal mold gravity casting process are slow production cycle, low process yield, ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/10B22C9/06B22C9/24B22C3/00B22D27/15B22D35/04
CPCB22C1/00B22C3/00B22C9/06B22C9/10B22C9/24B22D27/15B22D35/04
Inventor 李兴华刘春伟蒋永浩陈春峰王在田
Owner SHANDONG HONGYUAN NEW MATERIALS CO LTD