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Fabricating method of stainless cast iron cooker

A production method and technology of cookware, which are applied in the production of cookware and the field of cast iron cookware, can solve the problems of cast iron cookware such as easy rust, short service life, poor wear resistance and corrosion resistance, etc. Long life and good wear resistance

Active Publication Date: 2009-09-02
杭州蜗牛实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cast iron cookware processed by the original conventional treatment method is easy to rust, and the rust is harmful to the human body.
Prior art adopts metallic coating (as electroplating, spraying, casting and vacuum plating etc.) and non-metallic coating (inorganic coating and organic coating) to prevent cast iron pan from getting rusty, but metallic coating and non-metallic coating Not only will it hinder the dissolution of iron elements and cannot be ingested and absorbed by the human body, but these trace metal or non-metal elements will have any harmful effects on human health. In addition, the use of metal coatings and non-metal coatings to prevent cast iron cookware from rusting is relatively expensive. High, the hardness of cast iron cookware is low, the wear resistance and corrosion resistance are poor, and the service life is short

Method used

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  • Fabricating method of stainless cast iron cooker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Choose No. 22 cast iron as the raw material, and use ordinary technology to smelt it at a temperature of 800-900 ° C. After smelting, it will be processed into a pot semi-finished product according to the shape of the pot according to the existing method of casting and processing pots, and then through ordinary sanding. The equipment sands off the oxide skin on the surface of the semi-finished cast iron pot and removes the dust on the surface. Use ordinary grinding equipment to grind the mouth of the semi-finished cast iron pot into a rounded corner, and drill holes for the handle on the side of the semi-finished cast iron pot.

[0029] Put the above-mentioned semi-finished cast iron pots after drilling into a vacuum nitriding furnace with good sealing performance. The space of the vacuum nitriding furnace is 2 cubic meters, and 200 semi-finished cast iron pots of 32 cm can be placed in it at one time. Use a vacuum pump Pump out the air with a volume fraction of 90%, kee...

Embodiment 2

[0031] Choose No. 22 cast iron as the raw material, and use ordinary technology to smelt it at a temperature of 800-900 ° C. After smelting, it will be processed into a pot semi-finished product according to the shape of the pot according to the existing method of casting and processing pots, and then through ordinary sanding. The equipment sands off the oxide skin on the surface of the semi-finished cast iron pot and removes the dust on the surface. Use ordinary grinding equipment to grind the mouth of the semi-finished cast iron pot into a rounded corner, and drill holes for the handle on the side of the semi-finished cast iron pot.

[0032] Put the above-mentioned semi-finished cast iron pots after drilling into a vacuum nitriding furnace with good sealing performance. The space of the vacuum nitriding furnace is 2 cubic meters, and 200 semi-finished cast iron pots of 32 cm can be placed in it at one time. Use a vacuum pump The air with a volume fraction of 85% is pumped out...

Embodiment 3

[0034] Choose No. 22 cast iron as the raw material, and use ordinary technology to smelt it at a temperature of 800-900 ° C. After smelting, it will be processed into a pot semi-finished product according to the shape of the pot according to the existing method of casting and processing pots, and then through ordinary sanding. The equipment sands off the oxide skin on the surface of the semi-finished cast iron pot and removes the dust on the surface. Use ordinary grinding equipment to grind the mouth of the semi-finished cast iron pot into a rounded corner, and drill holes for the handle on the side of the semi-finished cast iron pot.

[0035] Put the above-mentioned semi-finished cast iron pots after drilling into a vacuum nitriding furnace with good sealing performance. The space of the vacuum nitriding furnace is 2 cubic meters, and 200 semi-finished cast iron pots of 32 cm can be placed in it at one time. Use a vacuum pump The air with a volume fraction of 80% is extracted....

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Abstract

The invention provides a fabricating method of a stainless cast iron cooker, which belongs to the technical field of the fabrication of daily goods and solves the problems of higher cost, lower rigidity, poorer wearing property and corrosion resistance, shorter service life, and the like. The fabricating method of the stainless cast iron cooker comprises the following steps: A. forming; B. nitrogen stainless treatment; and C. oil finish. The invention has the advantages of good rust prevention property, high safety performance, good iron supplementation effect, favorable rigidity and wearing property, long service life, and the like.

Description

technical field [0001] The invention relates to a method for making cookware; in particular, to a method for making cast iron cookware with high antirust ability; the method is also suitable for iron cookware that is pulled up or formed by ordinary cold-rolled iron plates; belongs to The production technology field of daily necessities. Background technique [0002] Cooking utensils are closely related to people's lives, and cooking utensils are closely related to people's lives. Existing cooking utensils are mainly made of materials such as cast iron, stainless steel, copper, and enamel. Cookware made of stainless steel is elegant in appearance, light and durable, corrosion-resistant and rust-free. However, stainless steel cookware is made of iron-chromium alloy infiltrated with nickel, molybdenum, titanium, cadmium, manganese and other trace elements. These trace metals are harmful to the human body; , beneficial to the human body; but after rusting, "patina" and blue vi...

Claims

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Application Information

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IPC IPC(8): A47J27/00B22D3/00C23C8/26C22C37/10B05D7/14
Inventor 严卫星
Owner 杭州蜗牛实业有限公司
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