Production method of gallium indium tin thermometer resurrection
A production method and technology for a thermometer, which are used in thermometers, thermometers based on material expansion/contraction, measuring devices, etc., can solve problems such as wasted man-hours, low yields, shortened production processes, etc., to simplify production processes and reduce scrap rates. , reducing the effect of secondary and multiple overflows
Pending Publication Date: 2019-04-09
东阿阿华医疗科技有限公司
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Problems solved by technology
[0009] The technical problem to be solved by the present invention is to provide a production method for reflow of gallium indium tin thermometer, which solves the problems of secondary or multiple reflow, low yield of tube and then inner core tube head, and waste of man-hours , shorten the production process, improve the yield and work efficiency of the thermometer
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[0027] Below in conjunction with embodiment, further illustrate the present invention.
[0028] to combine image 3 , Figure 4 It can be seen that a kind of production method of gallium indium tin thermometer overflow of the present invention comprises the following steps:
[0029] (1) The thermometer is filled with gallium indium tin liquid to obtain a semi-finished product;
[0030] (2) Store the semi-finished product of the filled thermometer in a material box filled with nitrogen, ready to enter the next process;
[0031] (3) Put the semi-finished product of the thermometer stored in the nitrogen material box into a constant temperature water tank with a temperature of about 43.3°C to soak and heat up. When the temperature is constant, the temperature fluctuation does not exceed ±0.015°C / 15min. The liquid alloy in the temperature sensing part heats up and expands, and the excess alloy liquid overflows the inner core tube;
[0032] (4) Use an oxygen blowtorch to burn t...
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The present invention discloses a production method of a gallium indium tin thermometer resurrection. The method comprises the following steps: (1) filling gallium indium tin liquid to obtain a semi-finished product; (2) storing the semi-finished product in a nitrogen-filled bin; (3) placing the stored semi-finished product at a temperature of 43.3 DEG C for temperature rise to make excess alloy liquid to overflow the inner core tube; (4) using an oxygen burner to completely burn out a triangle tube part of a thermometer heated in the step (3) from the inner tube to the upward 78 to 80 mm, andsealing the inner core tube head; (5) placing the thermometer after the inner core tube head is sealed at a temperature of 45.0 DEG C for temperature rise, so that a filamentous part of the liquid alloy during the melting process of the inner core tube head of the thermometer is fused with the liquid alloy below; (6) placing the thermometer l in a skimmer for smoothing rejection; and (7) performing point fixing, number assignment, assembly, outer sheath sealing, verification and packaging to obtain the finished product. According to the method provided by the present invention, the problems that the finished product after being subjected to secondary or multiple resurrection, rejection and inner core tube head sealing has a low yield and wastes man-hours are solved, the production processis shortened, and the yield and work efficiency of the thermometer are improved.
Description
technical field [0001] The invention relates to a production method of a thermometer, in particular to a production method of gallium indium tin thermometer overflow. Background technique [0002] At present, both at home and abroad are committed to the development of non-toxic and harmless environmentally friendly liquid alloy thermometers. The production of gallium indium tin thermometers is one of them. The process includes cutting materials, measuring eyes, pulling jackets, shrinking necks, expanding vesicles, and connecting inner tubes. , Scraping horn, measuring and matching, welding, sealing bubble, expanding head, filling, overflowing, cutting, throwing tube, inner core tube sealing head, fixed point, semi-colon, assembly, jacket sealing, verification, packaging process, among which complex Spill is a key technology in the production process of mercury-free (gallium indium tin) thermometers, which determines the content of liquid alloy in the thermometer and directly...
Claims
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Login to View More IPC IPC(8): G01K5/22G01K13/20
CPCG01K5/22
Inventor 韩明清周梅英刘芳崔希林韩明礼周忠岐
Owner 东阿阿华医疗科技有限公司