Constant-temperature automatic trace circulating water degreasing equipment and method thereof
A circulating water and constant temperature technology, which is applied in the degreasing field of powder metallurgy products, can solve environmental pollution, time-consuming and labor-intensive problems, and achieve the effects of reducing environmental pollution, saving a lot of resources, and saving resources
Active Publication Date: 2015-05-06
苏州中宝复合材料股份有限公司
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Problems solved by technology
When the concentration of the binder in the water is close to saturation, it is necessary to replace the saturated solution in the volume with clear water, which is time-consuming and laborious, and the addition of a degreasing solvent will inevitably cause environmental pollution. These technical problems generally exist in the water degreasing technologies and methods in the prior art.
Method used
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Embodiment
[0027] Close the drain valve 6, inject clear water into the water inlet valve 12 at the bottom of the water tank 1 with the thermal insulation layer 4, open the plastic thermal insulation cover on the water tank 1 at the same time, put the blank to be degreased into In the water tank 1;
[0028] When the clear water flows out from the overflow port 5 on the top of the water tank 1, stop injecting clear water and the heater 8 works so that the water temperature is constant at 45 degrees Celsius;
[0029] Start the water pump 10 so that the water in the water tank 1 flows through the inner circulation water outlet 9 and the inner circulation water inlet 11, so as to accelerate the diffusion and dissolution of the water-based binder in the blank into the water;
[0030] Reduce the water flow to complete the degreasing within 24 hours.
[0031] The above-mentioned overflow port 5 and water inlet 13 are opened at diagonal positions, the volume of the blank is 0.3 cubic meters, the...
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The invention relates to constant-temperature automatic trace circulating water degreasing equipment and a method thereof, and belongs to the technical field of degreasing of powder metallurgy products. The concentration of a bonder in water is continuously reduced in a mode of injecting trace clear water and automatically overflowing water for balance, and an internal circulation water outlet and an internal circulation water inlet are connected with a water pump for accelerating circulation of liquid in a water tank, so that the water-soluble bonder in a blank can be quickly dissolved in the water and the water temperature can be kept constant. In the process, a degreasing solvent does not need to be added, so that environmental pollution is alleviated; the clear water does not need to be changed wholly, so that resources are saved.
Description
technical field [0001] The invention relates to a constant-temperature automatic degreasing device and a method for micro-volume circulating water, and belongs to the technical field of degreasing powder metallurgy products. Background technique [0002] In recent years, the powder metallurgy method of manufacturing metal products from metal powder has been popularized in many industrial fields. Metal powder and binder are mixed and kneaded, and the kneaded product (mixture) is used to inject a blank. Injection molding is a near-net-size molding process. Its main technical advantages lie in its high degree of mechanization, precise product size, and high surface finish. It is irreplaceable in the field of manufacturing complex-shaped components. The blank thus produced is subjected to binder removal treatment, and then fired to obtain a metal product. There is a very important degreasing link in injection molding technology. The traditional degreasing method is to use heati...
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Inventor 田秀梅张寅
Owner 苏州中宝复合材料股份有限公司