Operation technical requirements of gas welding in traditional Chinese medicine pulverizer

In the production process of pharmaceutical machinery, steel plate cutting and welding is an indispensable process How to operate gas welding and gas cutting scientifically and safely is a necessary skill quality for every skilled worker Before the gas welding of the steel of the traditional Chinese medicine pulverizer, first of all, master the ignition, regulation, maintenance and extinction of the gas welding flame At present, oxyacetylene flame is mainly used in gas welding When the flame is ignited, the oxyacetylene regulating valve should be slightly opened, and then the acetylene regulating valve should be opened After the two gases are mixed in the welding torch, they will be ejected from the welding torch At this time, the welding torch can be ignited by approaching the fire source At the beginning of ignition, if the sound of "popping" continuously or the phenomenon of not easy to ignite occurs, it means that the pressure of the Yang gas is too high at this time, the oxygen regulating valve shall be adjusted in time until the flame is ignited smoothly The preheating flame energy rate is related to the cutting piece (steel plate of traditional Chinese medicine crusher), which should be selected according to the thickness of the cutting piece Generally, the thicker the cutting piece is, the greater the flame energy rate should be, but not in a positive proportion relationship When cutting thick steel plate, due to the slow cutting speed, in order to prevent the upper edge of the cutting seam from melting A relatively weak flame energy rate should be adopted If the flame energy rate is too large, continuous spherical rigid particles will be produced on the upper edge of the slit It even melts into a fillet At the same time, it will cause more slag on the back of the cutting part and affect the quality of gas cutting In gas cutting thin plates, because of the fast cutting speed, a relatively large flame energy rate should be used, but the cutting nozzle should be far away from the plate of the traditional Chinese medicine grinder, and a certain tilt angle should be maintained.