Zinc impregnation process
A kind of technology, zinc-hardening technology, applied in the direction of metal material coating process, coating, solid-state diffusion coating, etc., can solve the problems of low production efficiency, uneven quality of zinc-hardening, complicated production process of zinc-hardening, etc. Processing efficiency, good processing effect, and the effect of reducing production costs
Inactive Publication Date: 2016-10-05
重庆麦卡瑞机械制造有限公司
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Problems solved by technology
[0003] At present, the production process of sherardizing is complicated, and there is no uniform standard, resulting in uneven quality of sherardizing production. Many repeated processes also make production efficiency low, increase the labor burden of workers, and make the market competitiveness of products not high.
Method used
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Experimental program
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Embodiment Construction
[0010] The technical solution disclosed in the present invention is a zinc shedding process, which is characterized in that it includes the following steps: 1) Furnace loading: prepare 200 mesh-325 mesh zinc powder, anti-adhesive agent, and active agent into a furnace material seepage agent, and stir evenly ;
[0011] 2) Seal the furnace cover: turn on the furnace body to rotate the motor, set the set temperature of the temperature control instrument to 470°C~480°C, and then turn on the heating button in turn, until the indicated temperature is 470°C, fully open the air valve, when the indicated temperature reaches the set temperature When the temperature is high, close the vent valve, start timing and heat preservation, open the vent valve every 30 minutes to deflate once during the heat preservation period, and prohibit opening the vent valve in the last 30 minutes before stopping heating, and the heat preservation time at 470°C~480°C is 120~180 minutes , after reaching the ...
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The invention discloses a zinc impregnation process. The zinc impregnation process comprises the following steps: 1) charging: preparing a furnace charge impregnation agent from zinc dust with a size of 200 to 325 meshes, an anti-bonding agent and an activator and carrying out uniform mixing under stirring; 2) sealing of a furnace cover: starting a furnace body rotating motor, setting the set temperature of a temperature control instrument to be 470 to 480 DEG C, successively pressing heating buttons, opening all the air valves when indication temperature is lower than 470 DEG C, closing the air valves when the indication temperature reaches the set temperature, starting timing and heat insulation, opening the air valves for air exhausting every 30 min during heat insulation, turning off all the heating power sources after the temperature of 470 to 480 DEG C is maintained for 120 to 180 min, allowing a roller to continue rotating, opening a heating body by 10 to 20 cm in 40 to 60 min, then totally opening the heating body in 30 to 60 min, allowing the roller to continue rotating, stopping rotation of the roller after in 30 to 40 min, and carrying out discharging when temperature in the furnace is 100 DEG C or below; 3) discharging; and 4) finishing. The zinc impregnation process provided by the invention omits a great number of repeated procedures and has improved work efficiency.
Description
technical field [0001] The invention relates to a sherardizing process. Background technique [0002] The principle of powder zinc sherardizing technology is to place the zinc sherardizing agent and steel parts in a zinc sherardizing furnace and heat them to about 400 °C, and the active zinc atoms will penetrate into the steel parts from the surface to the inside. At the same time, iron atoms diffuse from the inside to the outside, which forms a zinc-iron intermetallic compound on the surface of the steel part, that is, the galvanized layer. Powder sherardizing technology originated from Britain and the former Soviet Union. Since the 1990s, experts from relevant departments in our country have successfully developed powder zinc sherardizing technology, a series of complete sets of equipment and powder zinc sherardizing products through painstaking research and experiments, and obtained powder zinc sherardizing equipment and furnace body rotary powder zinc shedding equipment...
Claims
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IPC IPC(8): C23C10/36
Inventor 凌庭贵
Owner 重庆麦卡瑞机械制造有限公司