Technique for ternary laser gas mixture weighing preparation

Abstract

The invention discloses a technique for ternary laser gas mixture weighing preparation. The specific scheme is as follows: (1), preparing a gas cylinder of the following high-purity virgin gases: CO2, He, N2 and V=a(L); (2), calculating the quantities of gases required to be injected according to the component proportions of all the gases; (3), weighing the mass of the empty gas cylinder: m1=b(g); (4), injecting CO2 into the gas cylinder and enabling the weight of the gas cylinder m2=m1+m CO2 to stop; (5), injecting He into the gas cylinder and enabling the weight of the gas cylinder m3=m2+m He to stop; (6), injecting N2 into the gas cylinder and enabling the weight of the gas cylinder m4=m3+m N2 to stop; (7), calculating the weighing result through the difference method and obtaining the definite value; and (8), examining after mixing the prepared gas cylinder by a gas mixing device. As the definite-value weighing gas-mixing method is utilized, the proportioning precision of laser gas is high, and batch production is facilitated; as the prepared laser gas is uniformly mixed, the product prepared by the technique is insusceptible to working conditions and environments, can be used stably, and saves the equipment investment in comparison with the field mixing technique.

Description

technical field [0001] The invention relates to a process method for gas weighing preparation, in particular to a ternary laser gas mixture (CO 2 , He, N 2 ) Weighing the preparation process. Background technique [0002] Laser gas mixture is usually used in the field of laser processing, filling gas for high pressure. At present, the laser gas mixture has the disadvantages of low laser gas ratio accuracy and difficulty in mass production during preparation. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a process method for weighing and preparing ternary laser mixed gas with high proportioning precision and suitable for mass production. [0004] The specific scheme of the process method of ternary laser mixed gas weighing preparation is as follows: [0005] (1) Prepare high-purity feed gas CO 2 , He, N 2 , and the receiving cylinder of V=a(L); [0006] (2) Configu...

AI Technical Summary

Problems solved by technology

At present, the laser gas mixture has the defects of low precision of laser gas ratio and difficulty in mass production during preparation.

Images