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A non-stick, puncture-resistant and high thermal conductivity surface treatment process for uncoated carbon steel wok pans

A technology with high thermal conductivity and surface treatment, applied in metal material coating process, coating, solid-state diffusion coating, etc., can solve problems such as perforation, improve non-stick life, improve perforation resistance, and improve thermal conductivity Effect

Active Publication Date: 2021-09-24
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a non-stick, perforation-resistant and high thermal conductivity non-coated carbon steel wok surface treatment process, in order to overcome the problems of non-coated carbon steel wok perforation, improve the non-coated carbon steel wok Pan nonstick and thermal conductivity

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  • A non-stick, puncture-resistant and high thermal conductivity surface treatment process for uncoated carbon steel wok pans
  • A non-stick, puncture-resistant and high thermal conductivity surface treatment process for uncoated carbon steel wok pans
  • A non-stick, puncture-resistant and high thermal conductivity surface treatment process for uncoated carbon steel wok pans

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Embodiment 1

[0045] In this embodiment, the non-stick, perforation-resistant and high thermal conductivity non-coated carbon steel wok surface treatment process, its process steps are as follows:

[0046] Step S1: After the original carbon steel wok blank is stamped and formed, use a neutral cleaning agent to clean the oil stain on the surface of the carbon steel wok, dry the carbon steel wok after cleaning the oil, and perform surface derusting treatment on the dried carbon steel wok 6 minutes.

[0047] Step S2: Sand blast the surface of the carbon steel wok for 6 minutes, and remove the attachments on the surface of the carbon steel wok after sandblasting.

[0048] Step S3: Put the carbon steel frying pan in the nitriding furnace, NH 3 The gas is directly input into the nitriding furnace at 590°C, NH 3 The air pressure is 0.95MPa, and after keeping for 8 hours, the carbon steel frying pan is removed from the nitriding furnace and air-cooled to room temperature, and the surface of the n...

Embodiment 2

[0055] In this embodiment, the non-stick, perforation-resistant and high thermal conductivity non-coated carbon steel wok surface treatment process, its process steps are as follows:

[0056] Step S1: After the original carbon steel wok blank is stamped and formed, use a neutral cleaning agent to clean the oil stain on the surface of the carbon steel wok, dry the carbon steel wok after cleaning the oil, and perform surface derusting treatment on the dried carbon steel wok 3 minutes.

[0057] Step S2: Sand blast the surface of the carbon steel wok for 4 minutes, and remove the attachments on the surface of the carbon steel wok after sandblasting.

[0058] Step S3: Put the carbon steel frying pan in the nitriding furnace, NH 3 The gas is directly fed into the nitriding furnace at 550°C, NH 3 The air pressure is 1.1 MPa, and after maintaining for 6 hours, the carbon steel frying pan is removed from the nitriding furnace and air-cooled to room temperature, and the surface of the...

Embodiment 3

[0065] In this embodiment, the non-stick, perforation-resistant and high thermal conductivity non-coated carbon steel wok surface treatment process, its process steps are as follows:

[0066] Step S1: After the original carbon steel wok blank is stamped and formed, use a neutral cleaning agent to clean the oil stain on the surface of the carbon steel wok, dry the carbon steel wok after cleaning the oil, and perform surface derusting treatment on the dried carbon steel wok 9 minutes.

[0067] Step S2: Sand blast the surface of the carbon steel wok for 8 minutes, and remove the attachments on the surface of the carbon steel wok after sandblasting.

[0068] Step S3: Put the carbon steel frying pan in the nitriding furnace, NH 3 The gas is directly input into the nitriding furnace at 600℃, NH 3 The air pressure is 1.25MPa, and after keeping for 10 hours, the carbon steel wok is removed from the nitriding furnace and air-cooled to room temperature, and the surface of the nitrided...

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Abstract

The invention relates to the field of surface treatment of iron pans, in particular to a surface treatment process of an uncoated carbon steel wok with non-stick properties, perforation resistance and high thermal conductivity. Step S1: Degreasing and cleaning the original carbon steel frying pan blank and derusting the surface; Step S2: Sandblasting the surface of the carbon steel frying pan; Step S3: Gas nitriding the surface of the carbon steel frying pan to form a dense layer on the surface of the carbon steel frying pan Nitriding layer; step S4: chemical treatment of mixed aqueous solution on the surface of the nitriding layer of the carbon steel wok; step S5: on the basis of the nitriding layer of the carbon steel wok, oxidize the surface of the carbon steel wok; step S6: the oxidized carbon Chemical treatment of the surface of the steel wok with a mixed aqueous solution; step S7: polishing the surface of the oxide layer of the carbon steel wok; step S8: after polishing the surface of the oxide layer, chemically treat the surface of the carbon steel wok with a mixed aqueous solution. The invention can overcome the problems such as perforation of the non-coated carbon steel frying pan, and improve the non-stick property and thermal conductivity of the non-coating carbon steel frying pan.

Description

technical field [0001] The invention relates to the field of surface treatment of iron pans, in particular to a surface treatment process of an uncoated carbon steel wok with non-stick properties, perforation resistance and high thermal conductivity. Background technique [0002] The carbon steel frying pan used for cooking food generally adopts surface nitriding and oxidation technology or surface coating Teflon (Teflon) coating technology at present. However, the uncoated iron pan processed by nitriding and oxidation technology can improve the uniform corrosion resistance, but it is still easy to perforate (pitting corrosion), and it is easy to stick to the pan during cooking food, which affects the nutrition of food and increases the difficulty of cleaning the iron pan . Although the Teflon-coated carbon steel frying pan has good non-stick performance, the Teflon coating is easy to fall off during cooking and cleaning the iron pan, which will reduce the non-stick perform...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C8/26C23C22/62C23C22/73C23C22/82C23G1/24
CPCC23C8/26C23C22/62C23C22/73C23C22/82C23G1/24
Inventor 王胜刚
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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