Heat resistant steel plate castings during processing, will make the core of bone, in order to ensure the quality of heat resistant steel plate castings at this time, must be to have a certain amount of sand can eat. About the specific requirements of the relevant data can refer to the official website.
At the same time on the heat-resistant steel tray casting during manufacture, for its core sand must be applied to some extent. Adding 2% ~ 3% sawdust in core sand, which is then with fine mesh sieve. Add 3% ~ 5% dozen coke furnace crushed down, after this that is to pay attention to must be in 8 ~ 10 mesh screened. Two adding mixing core sand, can improve the permeability of core sand, deformability and heat resistance.
After pouring steel plate casting casting box too early. For casting after casting, hit box can not early, especially the bed of machine tool gear box and its related in large castings, at the same time, the processing of castings, casting (DIAL) does not allow water quench, avoid casting intensified cooling, making casting free normal cooling shrinkage, obtaining good castings. However, in addition to heat resistant steel plate castings, machining for other types of casting because the structure is relatively simple, in such circumstances, should advance to chill or allow watering box.
Heat resistant steel plate castings in processing when will the production of wood. On the production of wood timber must be kept dry, the structure is more reasonable, is made of wood in the head, as well as its core activities must be site mark.
At the same time, heat-resistant steel plate casting wood production, should be to ensure their own inspection and special inspection combined, the purpose of doing so is to avoid shrinking size or wood processing allowance error, can effectively reduce the heat resistant steel plate casting processing cost. After the casting is completed, wood to avoid the flat surfaces, wood appear warpage twists, to ensure the normal use of the next time.http://www.wuxiorient.com/