Special removal device and method for black spots on working surface of rivet electric contact
A technology for electrical contacts and working surfaces, applied in chemical instruments and methods, cleaning methods using liquids, cleaning methods using gas flow, etc.
Pending Publication Date: 2019-09-20
ZHEJIANG FUDA ALLOY MATERIALS TECH CO LTD
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Problems solved by technology
[0004] For this reason, the applicant has previously applied for a method for removing surface defects of rivet-type electrical contacts based on magnetic polishing. See the Chinese patent application number CN201810975028.5. The magnetic polishing method has a certain degree of polishing wear on the working surface of the rivet electrical contact, so further improvement is still needed
Method used
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Embodiment Construction
[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0025] Device embodiment
[0026] Such as figure 1 As shown, the special removal device is provided, including a cylinder 1, the cylinder 1 is provided with a vibrating pump 2 for driving the cylinder to vibrate at high frequency, and the cylinder 1 is fixedly provided with a The screen 3 of the rivet electric contact, the screen 3 divides the cylinder into an upper chamber 11 and a lower chamber 12, the upper chamber 11 of the cylinder 1 is detachably sealed and fixed with a sealing cover 4, the screen The top of 3 is also connected with an exhaust pipe 31 drawn out of the cylinder through a pipeline. The outer end of the exhaust pipe 31 is an air outlet. The lower partition 5 is arranged at intervals below the screen 3, and the lower chamber 12 corresponds to ...
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The invention discloses a special removal device and method for black spots on the working surface of a rivet electric contact. The device comprises a cylinder body, wherein a vibration pump used for driving the cylinder body to vibrate at high frequency is arranged on the cylinder body, a screen used for placing a rivet electric contact is fixedly arranged in the cylinder body, a liquid inlet pipe communicating with a working cavity is arranged on the cylinder body, a first valve is arranged on the liquid inlet pipe, a liquid discharge pipe communicating with an upper cavity is arranged on the cylinder body, a second valve is arranged on the liquid discharge pipe, the opening position of the position, communicating with the upper cavity, of the liquid discharge pipe is located above a certain height of the screen, and a third valve is arranged on the discharge pipe. The process comprises the steps of dry vibration and wet vibration. According to the method, the black spots on the working surface of the rivet electric contact can be effectively removed, and the physical abrasion cannot be caused on the working surface of the rivet electric contact.
Description
technical field [0001] The invention relates to the field of surface treatment of metal materials, in particular to a special device and method for removing black spots on the working surface of a rivet electric contact. Background technique [0002] Rivet electrical contacts are used in various relays, contactors, temperature controllers, and contactors of various current levels. They are important accessories that affect the reliability of the contact system of switching electrical appliances. Its preparation process generally includes beating, grinding, annealing, pickling, polishing, etc. After grinding, black spots often appear on the working surface, which are distributed in granular form and have a certain depth of adhesion. The black spot components mainly include C, O, Fe, Cu, etc. [0003] After further analysis and research by the inventor of the present application, it is found that the black spots mainly come from the solidification of the organic glue (composi...
Claims
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IPC IPC(8): B08B7/02B08B5/04B08B3/08B08B3/10B08B13/00
CPCB08B7/02B08B5/043B08B3/08B08B3/10B08B3/102B08B13/00
Inventor 王珩黄文明翁桅童意平何章成
Owner ZHEJIANG FUDA ALLOY MATERIALS TECH CO LTD