Production method for conducting contact arm of high-voltage switch circuit breaker
A technology for high-voltage switches and circuit breakers, applied in the field of preparation of conductive contact arms, can solve the problem that it is difficult to accurately control the heating temperature, initial forging and final forging temperature of the product, the bonding force between the conductive contact arm and the coating, and the ability to prevent discoloration. It is difficult to guarantee the deformation degree and deformation speed, etc., to achieve the effect of enhanced bonding force, enhanced anti-discoloration ability, and guaranteed deformation degree.
Active Publication Date: 2012-04-25
FUJIAN SANXING ELECTRIC
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Problems solved by technology
[0004] (1) The existing process for preparing the conductive contact arm of a high-voltage switch circuit breaker is a forging process. The surface of the conductive contact arm is prone to oxide skin, and it is difficult to accurately control the heating temperature, initial forging temperature, and final forging temperature of the product, so it is difficult to ensure deformation. degree and speed of deformation
[0005] (2) The current method for preparing the conductive contact arm of a high-voltage switch circuit breaker is the silver plating process. The bonding force between the conductive contact arm and the coating and the ability to prevent discoloration are not strong, and the thickness of the coating is not uniform enough, and the deposition rate is slow;
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[0041] Now in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0042] Examples such as Figure 1 to Figure 5 shown, where figure 2 It is a structural diagram of the conductive arm of a high-voltage circuit breaker, wherein the cylindrical body includes a front section and a rear section, and its preparation method includes forging process 1, silver plating process 2 and spraying process 3, wherein:
[0043] (1) Forging process 1, its specific process steps:
[0044] A blank preparation 11: select the material as T2 copper hard, and then cut the material.
[0045] B Heating before forging 12: Use oxidizing gas to heat in a thermocouple-controlled furnace to avoid "hydrogen disease" and prevent oxide scales on the surface of the conductive contact arm. Heat to the temperature range required by the technology to ensure the control of the heating temperature, initial forging temperature and final forging temp...
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The invention discloses a production method for a conducting contact arm of a high-voltage switch circuit breaker. The production method comprises a forging process, a silver plating process and a spraying process, wherein the forging process comprises the steps of blank preparation, heating before forging, forging and cleaning; the silver plating process comprises the steps of oil removal of workpieces to be processed, chemical polishing, silver pre-plating, silver plating, drying, product inspection and packaging and warehousing; and the spraying process comprises the steps of oil removal, acid pickling, drying and heating, spraying, finishing, flashing, self-checking, drying and curing, reshaping and submitting for inspection. According to the production method disclosed by the invention, the technical level of the conducting contact arm is increased and the conducting contact arm of the high-voltage switch circuit breaker is enabled to obtain higher market competitive value.
Description
technical field [0001] The invention discloses a method for preparing a conductive contact arm of a circuit breaker, in particular to a method for preparing a conductive contact arm of a high-voltage switch circuit breaker. Background technique [0002] Chinese patent document 2009201318816.5 discloses a conductive contact arm of a high-voltage circuit breaker, which includes a cylindrical body on which a heat dissipation structure is formed. The heat dissipation groove, the cylindrical body includes a front section and a rear section, the diameter of the front section is larger than that of the rear section, the heat dissipation structure is formed in front of the cylindrical body, and the heat dissipation groove is an elongated groove extending in the axial direction of the body. [0003] The preparation method of the existing high-voltage circuit breaker conductive contact arm mainly has the following disadvantages: [0004] (1) The existing process for preparing the con...
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Inventor 王星荣
Owner FUJIAN SANXING ELECTRIC