Maintenance method of tire mold in forging plant

Forging plant correct use and maintenance of the tire mold is to improve the life of the tire mold is an effective method, the main contents are:
First, the tire mold preheating tire mold must be uniformly preheated before use, in order to improve the impact toughness of the mold material, to prevent rupture when used. Preheating temperature is generally 150 ~ 250 ℃. Preheating method is usually used to burn red iron in the mold preheating, should pay attention to prevent the surface of the mold chamber local tempering, reduce hardness.
Measurement of preheating temperature, generally empirical, such as saliva spit in the tire mold on the yellow spot, that is, to reach the preheating temperature. If there are conditions available surface thermometer measurement.
Second, mold cooling mold must be cooled at any time during use, the working temperature does not exceed 400 ℃ is appropriate, otherwise it will produce local tempering, so that the mold chamber collapse, cracking and other phenomena.
Third, die lubrication Forging plant tire mold in the working process to be lubricated to improve the tire mold life and forging surface smoothness. Lubricants available waste oil or waste oil and graphite adjusted into a paste mixture, you can also use saturated brine. Salt water mainly plays a cooling effect, but also has a certain lubricating effect, and the price is easy to use, easy to use, hygiene.
Fourth, the correct method of operation in order to extend the service life of the tire mold, the production process must also have the correct method of operation. Forging billet into the mold before the net oxide skin, reduce the oxide skin on the surface of the die chamber wear; operating action should be rapid, to avoid forging in the tire mold to stay too long; large equipment should pay attention to the small work when striking the weight; when the temperature of the forging is reduced to the flying edge of the black, there is a rigid impact phenomenon, you should immediately stop the hammering; up and down the anvil surface should be straight, anvil surface depression is often caused by the tire mold damage.
Fifth, timely renovation of the tire mold forging plant using the tire mold to make, such as found rounded corners of the protruding places have bulged or collapsed, should be promptly repaired and ground; local flaking or abrasion can be used when the surfacing welding welding, replacing the welding and then a little repaired and ground; die chamber when the wear is more serious, as appropriate, to take the appropriate measures to repair; such as cracked die chamber, can be in the mold periphery of the hot set on the hoops.