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Low-alloy medium-silicon vermicular graphite cast iron glass mold material and preparation method thereof

A technology of glass mold material and vermicular graphite cast iron, which is applied in the field of low-alloy medium-silicon vermicular graphite cast iron glass mold material and its preparation, can solve the problems of short life of glass molds, insufficient oxidation resistance and wear resistance, and avoid direct contact and diffusion, improving the performance of machining, and the effect of low hardness

Active Publication Date: 2018-08-31
CHENGDU XINZHI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to solve the problem that the above-mentioned domestic vermicular graphite cast iron molds used for glass products still have insufficient oxidation resistance and wear resistance, resulting in a short service life of the glass molds. The present invention provides low-alloy medium silicon vermicular graphite cast iron glass mold material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Low alloy medium silicon vermicular graphite cast iron glass mold material, the low alloy medium silicon vermicular graphite cast iron glass mold material is composed of the following elements in mass percentage: iron 87.5%, silicon 2.8%, carbon 3.4%, manganese 0.4%, chromium 0.2% , vanadium 0.1%, titanium 0.08%, inoculant 0.4%, vermicular agent 0.5%.

[0027] The inoculant is at least one of 75 ferrosilicon inoculants or silicon barium inoculants; the vermicular agent is composed of the following raw materials in mass fraction: 3.7-4.3% of magnesium, 8.5-9.5% of lanthanides, 43-43% of silicon 47%, calcium 1.5-2.5% and aluminum ≤ 1.2%.

[0028] The preparation method of silicon vermicular graphite cast iron glass mold material in low alloy comprises the following steps:

[0029] (1) Raw material preparation: take raw materials according to the ratio of iron 87.5%, silicon 2.8%, carbon 3.4%, manganese 0.4%, chromium 0.2%, vanadium 0.1%, titanium 0.08%, inoculant 0.4%, v...

Embodiment 2

[0036] The low-alloy silicon vermicular graphite cast iron glass mold material is composed of the following elements by mass percentage: iron 93.4%, silicon 2.85%, carbon 3.5%, manganese 0.45%, chromium 0.25%, vanadium 0.13%, titanium 0.09%, inoculant 0.44%, vermicular agent 0.56%.

[0037] The inoculant is at least one of 75 ferrosilicon inoculants or silicon barium inoculants; the vermicular agent is composed of the following raw materials in mass fraction: 3.7-4.3% of magnesium, 8.5-9.5% of lanthanides, 43-43% of silicon 47%, calcium 1.5-2.5% and aluminum ≤ 1.2%.

[0038] The preparation method of silicon vermicular graphite cast iron glass mold material in low alloy comprises the following steps:

[0039] (1) Raw material preparation: take raw material according to the ratio of iron 93.4%, silicon 2.85%, carbon 3.5%, manganese 0.45%, chromium 0.25%, vanadium 0.13%, titanium 0.09%, inoculant 0.44%, vermicular agent 0.56%, spare;

[0040] (2) Smelting: adding iron, silico...

Embodiment 3

[0046] Low alloy medium silicon vermicular graphite cast iron glass mold material, the low alloy medium silicon vermicular graphite cast iron glass mold material is composed of the following elements in mass percentage: iron 92.12%, silicon 2.89%, carbon 3.6%, manganese 0.5%, chromium 0.29% , vanadium 0.15%, titanium 0.1%, inoculant 0.5%, vermicular agent 0.6%.

[0047] The inoculant is at least one of 75 ferrosilicon inoculants or silicon barium inoculants; the vermicular agent is composed of the following raw materials in mass fraction: 3.7-4.3% of magnesium, 8.5-9.5% of lanthanides, 43-43% of silicon 47%, calcium 1.5-2.5% and aluminum ≤ 1.2%.

[0048] The preparation method of silicon vermicular graphite cast iron glass mold material in low alloy comprises the following steps:

[0049] (1) Raw material preparation: take raw materials according to the ratio of iron 92.12%, silicon 2.89%, carbon 3.6%, manganese 0.5%, chromium 0.29%, vanadium 0.15%, titanium 0.1%, inoculant 0...

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Abstract

The invention discloses a low-alloy medium-silicon vermicular graphite cast iron glass mold material and a preparation method thereof. The low-alloy medium-silicon vermicular graphite cast iron glassmold material comprises, by mass, 87.5-92.12% of iron, 2.8-2.89% of silicon, 3.4-3.6% of carbon, 0.4-0.5% of manganese, 0.2-0.29% of chromium, 0.1-0.15% of vanadium, 0.08-0.1% of titanium, 0.4-0.5% ofnucleating agent and 0.5-0.6% of vermiculizer. Through the optimized formula, the oxidation resistance and wear resistance of a mold are greatly improved. Meanwhile, through the mutual cooperative effect of the added materials, the toughness, oxidation resistance and wear resistance of the glass mold are greatly improved. Thus, the service life of the mold is prolonged.

Description

technical field [0001] The invention belongs to the technical field of alloy cast iron manufacturing technology, and in particular relates to a low-alloy medium silicon vermicular graphite cast iron glass mold material and a preparation method thereof. Background technique [0002] Vermicular graphite cast iron is a new type of engineering material whose graphite shape is between flake and spherical. Its conventional mechanical properties, wear resistance and thermal fatigue performance are much better than gray cast iron, and its thermal conductivity and shock absorption are better than Ductile iron is excellent. Therefore, this material not only has good thermal conductivity and shock absorption of gray cast iron, but also has good wear resistance and high strength of ductile iron, and can be widely used in the manufacture of diesel engine bodies, cylinder heads, cylinder liners, brake pads, Moving drums, intake and exhaust manifolds, and ingot moulds, especially glass mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C37/06C22C33/10C21D1/26C21D5/00
CPCC21D1/26C21D5/00C21D2211/005C21D2211/009C22C33/10C22C37/06C22C37/10
Inventor 王志周家平
Owner CHENGDU XINZHI IND
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