{"id":30358,"date":"2024-11-11T15:55:50","date_gmt":"2024-11-11T07:55:50","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=30358"},"modified":"2024-11-11T15:56:09","modified_gmt":"2024-11-11T07:56:09","slug":"clc0042","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/clc0042\/","title":{"rendered":"What issues should be paid attention to in the production process of heating wire"},"content":{"rendered":"

The production process of heating wire involves multiple processes and strict technical requirements. To ensure the quality and safety of the final product, the following points need to be noted:<\/p>\n

1. Material selection and processing<\/p>\n

High-purity raw materials: Heating wires are commonly made of high-temperature alloys such as nickel-chromium alloys and iron-chromium-aluminum alloys. The purity and composition ratio of the raw materials directly determine the heat resistance and resistance stability of the heating wire.<\/p>\n

Homogeneity: The material must have a uniform composition to avoid unstable resistance values or localized melting at high temperatures.<\/p>\n

Pre-oxidation treatment: Pre-oxidation treatment of electric heating alloys during the production process can increase their anti-oxidation properties and extend their service life.<\/p>\n

2. Precise wire drawing and rolling<\/p>\n

Control size and resistivity: The wire drawing process has strict requirements on the diameter of the heating wire, because the diameter of the heating wire directly affects the resistivity and calorific value. The wire diameter needs to be strictly controlled to ensure product consistency.<\/p>\n

Surface treatment: During the rolling process, impurity residues and surface defects should be minimized to avoid breakage or other failures caused by surface defects during use.<\/p>\n

3. Heating treatment and heat treatment process<\/p>\n

Annealing process: Annealing is usually performed after wire drawing and rolling to eliminate internal stress and make the heating wire structure more stable. This helps to improve the durability of the heating wire at high temperatures.<\/p>\n

High temperature testing: Heating treatment helps improve the high temperature resistance of the heating wire, and the test can ensure that the performance of the heating wire is stable at a specific temperature.<\/p>\n

4. Resistance value detection and control<\/p>\n

Resistance test: During the production process, each batch needs to be tested for resistance to ensure that it meets the design standards. Resistance values that are too high or too low will affect the heating effect.<\/p>\n

Consistency: Resistance value testing should be performed before and after winding and welding to ensure the consistency of resistance value and avoid temperature control problems caused by unstable resistance value.<\/p>\n

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