A processing method of a ground test device for spraying liquid
A processing method and liquid technology, applied in the field of workpiece processing, can solve problems such as workpiece deformation and stress concentration, and achieve the effect of ensuring product quality
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Embodiment 1
[0046] A method for processing a liquid injection ground test device, comprising the following steps:
[0047] S1. Process the parts of the cooling chamber, and form the cooling chamber after the parts are assembled and welded. The steps are as follows:
[0048] a. If figure 1 As shown, square grooves are processed on the upper and lower end surfaces of the cooling chamber body, trapezoidal grooves are processed in the middle of the front end surface, and connecting holes are uniformly processed around the grooves;
[0049] b. If figure 2 As shown in Fig. 1, the ring cover composed of the outer rib and the inner baffle is processed, and a square groove matching the square groove of the cooling cavity body is opened in the middle of the rib; as image 3 As shown, the top surface of the processing is flat, the bottom surface is stepped, and the top corners are chamfered; such as Figure 5 As shown, ring cover grooves matching the water-cooling ring cover are machined on the ...
Embodiment 2
[0067] The difference from Example 1 is that in steps c, e, and k, the pressure of vacuum brazing is 0.04Pa, and the temperature is 1200°C for 30 minutes of vacuum brazing, and when the temperature drops to 400°C, the furnace is filled with high-purity nitrogen to make the furnace Internal pressure rises to 8×10 4 After Pa, start the fan to stir the gas, cool it down to 40°C and take it out of the furnace.
[0068] The beneficial effect of this embodiment is: under the above vacuum brazing and cooling conditions, the welding quality can be guaranteed and the overall quality of the workpiece can be improved.
Embodiment 3
[0070] The difference from Example 1 is that in steps c, e, and k, the pressure of vacuum brazing is 0.05Pa, and the temperature is 1000°C for vacuum brazing for 10 minutes. When the temperature drops to 650°C, fill high-purity nitrogen to make the furnace Internal pressure rises to 8×10 4 After Pa, start the fan to stir the gas, cool it down to 55°C and take it out of the furnace.
[0071] The beneficial effect of this embodiment is: under the above vacuum brazing and cooling conditions, the welding quality can be guaranteed and the overall quality of the workpiece can be improved.
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