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Casting method of iron casting with water-cooled copper mold

A metal mold casting and water-cooled copper technology, which is applied in the field of iron castings, can solve the problems of lack of systematic research on metal mold casting technology, shorten the service life of metal molds, and affect the quality of castings, so as to reduce the auxiliary production area and reduce industrial noise , the effect of small footprint

Inactive Publication Date: 2006-12-13
SHENYANG RES INST OF FOUNDRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a lack of systematic research on metal mold casting technology in my country, and it is still in the stage of using iron-based metal molds and manual operation to produce small and simple castings.
Iron-steel metal molds generate great thermal stress due to the huge temperature gradient during use, which affects the quality of castings. At the same time, the service life of metal molds is greatly shortened, and the application is limited.

Method used

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  • Casting method of iron casting with water-cooled copper mold
  • Casting method of iron casting with water-cooled copper mold
  • Casting method of iron casting with water-cooled copper mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A water-cooled copper metal mold casting method for iron castings, including a molten iron melting and processing department, a metal mold casting department and a casting post-processing department. The equipment used includes a 0.5T intermediate frequency melting furnace, a 0.5T air pressure heat preservation quantitative pouring furnace, a single station metal mold casting machine, a set of central control system, a metal mold coating machine, and a heat treatment furnace , a hydraulic trimming machine, a drum type shot blasting machine and a set of ultrasonic spheroidization rate tester.

[0032] The melting of molten iron adopts KGPS-500 medium frequency induction furnace with neutral integral lining. The melting speed is 0.5T / 50-80min, and the furnace temperature is 1450-1580℃. The molten iron from the furnace enters a PPF1-100 type pressure heat preservation and quantitative pouring furnace. Inject 6kg of molten iron into the small ladle or directly inject the m...

Embodiment 2

[0036] Embodiment 2 is basically the same as Embodiment 1, and the difference is that the water-cooled metal type adopts copper-chromium alloy (Cu-Cr) or copper-chromium-zirconium-aluminum alloy (Cu-Cr-Zr-Al), and the runner ratio is ( f 直 :F 横 :F 内 ) takes 1.0:1.7:2.3. The copper-chromium alloy or copper-chromium-zirconium-aluminum metal type is used with temperature control at 215°C. The adding amount of nodulizer is 1.3%, and the adding amount of inoculant is 0.8%.

Embodiment 3

[0038] Embodiment three is basically the same as embodiment one, and its differences mainly include: the water-cooled metal type selects copper-nickel-silicon alloy (Cu-Cr-Zr), and the runner ratio is (F 直 :F 横 :F 内 ) takes 1.0:1.7:2.6. The temperature is controlled at 260°C during use. The adding amount of nodulizer is 1.8%, and the adding amount of inoculant is 1.2%.

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Abstract

The casting process of iron casting with water-cooled copper mold includes molten iron smelting and treating, casting in metal mold and post-casting treatment. The technological key points include metal mold with cooling water passage and of red copper or copper alloy; sprue runner ratio of 1.0 to 1.3-1.9 to 1.65-3.0; mold temperature during use of 100-280 deg.c; the nodulizing alloy with main components of Mg and RE and the added amount of 0.9-2.2 wt% molten iron; the inoculant of Si-Fe and Ba-Si-Fe and the added amount of 0.41-1.6 wt% molten iron. The present invention has high casting mechanical performance and stable quality of casting, high production efficiency and other advantages.

Description

(1) Technical field [0001] The invention relates to a casting method, in particular to a method for casting iron castings using water-cooled copper metal molds. (2) Background technology [0002] At present, the production of iron castings in my country mainly adopts sand casting technology. Sand casting produces dust, waste sand, waste gas, etc. Operators work in a harsh environment, which not only has high labor intensity and high noise, but also affects the health of workers, especially the quality of iron castings produced by sand casting technology is poor, mechanical The processing volume is large, the material utilization rate is low, the energy consumption is large, and the production efficiency is low. Metal mold casting technology is an advanced clean, precision forming technology. In recent years, Europe, the United States, Japan and other countries have begun to adopt it in industries such as automobiles, home appliances, and machinery. There is a lack of syst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/06B22D23/00B22D27/04C22C33/04C22C33/10
Inventor 齐笑冰刘子安唐骥孙逊
Owner SHENYANG RES INST OF FOUNDRY
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