Austenitic stainless steel kitchenware and machining method thereof
A technology of austenitic stainless steel and processing methods, which is applied in metal processing equipment, forming tools, manufacturing tools, etc., can solve the problem of magnetism, martensitic phase transformation of austenitic stainless steel kitchenware, damage to the anti-rust ability of 304 stainless steel, etc. question
Pending Publication Date: 2020-04-07
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the problems in the prior art that austenitic stainless steel kitchen utensils easily induce martensitic transformation during plastic deformation, which destroys the good rust resistance of 304 stainless steel and makes austenitic stainless steel kitchen utensils magnetic. Provided is an austenitic stainless steel kitchen utensil and a processing method thereof
Method used
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Embodiment 1
[0033] First heat the mold with a heating rate of 15°C / s, so that the temperature of the austenitic stainless steel reaches 270°C after heat treatment, and then press the austenitic stainless steel liner at this temperature with a stamping rate of 35mm / s, the stamping time is 90s.
Embodiment 2
[0035] Firstly, the 304 stainless steel stamping parts are heated, and the heating rate is 10°C / s, so that the temperature of the austenitic stainless steel after heat treatment reaches 270°C, and then the austenitic stainless steel pot is stamped at this temperature, and the stamping The speed is 40mm / s, and the stamping time is 80s.
Embodiment 3
[0037] During the stamping process of the austenitic stainless steel pot, the hydraulic oil is firstly heated, and the heating time is 20°C / s, so that the temperature of the austenitic stainless steel after heat treatment reaches 270°C, and then the austenitic stainless steel is heated at this temperature Stamping is carried out with a stainless steel pot with a stamping speed of 45mm / s and a stamping time of 70s.
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The invention relates to the field of austenitic stainless steel kitchenware machining, and discloses austenitic stainless steel kitchenware and a machining method thereof. The method comprises the steps that austenitic stainless steel is subjected to heating treatment, and then plastic deformation machining is conducted at the temperature reached through heating treatment. According to the austenitic stainless steel kitchenware and the machining method thereof, it is guaranteed that a certain temperature is achieved in the austenitic stainless steel plastic deformation machining process, a martensite structure induced by stress is eliminated, the structure of the austenitic stainless steel kitchenware is kept as single austenite, accordingly, the anti-corrosion performance of the austenitic stainless steel kitchenware is improved, and the machining magnetism of the austenitic stainless steel kitchenware is eliminated.
Description
technical field [0001] The invention relates to the field of processing austenitic stainless steel kitchenware, in particular to an austenitic stainless steel kitchenware and a processing method thereof. Background technique [0002] At present, commonly used stainless steel liners and pots are usually made of 304 stainless steel through stamping. 304 stainless steel plate is a kind of austenitic stainless steel at normal temperature. In the plate state, the steel is a single austenite structure, and its rust resistance is good. However, when 304 austenitic stainless steel is subjected to plastic deformation processing at room temperature, such as stamping, stretching, etc., due to the accumulation of a large amount of stress inside the stainless steel, it will lead to stress-induced martensitic transformation, that is, in the original single austenitic stainless steel Martensite is formed in the microstructure. Martensite is a ferromagnetic structure. After the formation ...
Claims
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IPC IPC(8): B21D22/20B21D22/02B21D37/16
CPCB21D22/20B21D22/022B21D37/16
Inventor 阳颖飞杨玲万鹏曹达华
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD