Briefly Analyze The Operation Steps Of The Metallographic Cutting Machine And Teach You How To Use It
The metallographic cutting machine is mainly used to cut the metallographic structure in the material. The metallographic structure refers to the chemical composition in the metal, as well as the composition with the same physical properties as the crystal structure, mainly including solid solutions, pure substances and metal compounds. Under the influence of external factors, the metallographic structure will cause changes in the internal structure of the metal or alloy. The metallographic cutting machine is a precision instrument for performing this operation, and it is usually performed in a special laboratory. When it is used, the editor will introduce the characteristics and operation steps of the metallographic cutting machine.
The cutting grinding wheel of the metallographic cutting machine is directly fixed on the shaft of the motor, and the sample fixed in the jaw is cut by the swing of the saw frame. The motor is fixed on the base, and the sleeve is sleeved on the shaft of the motor. be fixed. The bracket fixed on the front of the motor is equipped with a saw frame that can rotate around the horizontal axis. The jaws are moved by the rotation of the handle to clamp the sample in the clamp seat. When the saw frame is rotated, the sample can be cut. The cooling system can manually control the flow with the knob fixed on the cock, and the coolant is discharged from the rubber tube fixed on the back of the base. When the machine is working, the grinding wheel is blocked by the cover to prevent the coolant from splashing and the grinding wheel from flying out and hurting people when it is broken.
Operation steps of metallographic cutting machine:
1. Preparations before starting the machine
(1) Make sure that all the "on and off" of the machine are in the "off" position. (2) Confirm that the ground wire of the machine is firm and reliable. (3) Confirm that the cutting wheel is not loose. (4) Confirm that the cutting wheel is running forward. (5) Confirm that the water inlet and outlet pipes are smooth and the cooling is intact.
2. Clamping of the sample
Use the support plate to support the sample holder→loosen the clamping screw to put the sample into the jaw of the sample holder→according to the sampling size requirements, fasten the sample so that it cannot be loosened during cutting.
3. Cutting of the sample
Press the green button to turn on the motor switch, and then turn on the cooling water switch → properly adjust the flow of cooling water: if the flow is too large, it will splash outward; if the flow is too small, it will easily cause the sample to overheat and cause changes in the metallographic structure → slowly put down the sample support frame, When the cutting wheel is in contact with the sample, it starts cutting. The force should be applied evenly. Do not use too much force to prevent damage to the cutting wheel and overheating of the sample → after cutting the sample, set up the clamping frame and press The red button turns off the motor switch, turns off the cooling water switch → when the grinding wheel is no longer rotating, loosen the jaws and take out the sample.
