2019-07-16 13:19:48

Bucket Teeth Casting and Melting Technology

Bucket teeth are moulded with resin sand, shovel heads are made of riseless casting technology, shovel bases are made of appetite and chilled iron. Since the shovel heads and shovel bases of bucket teeth are used in the condition of blank, it is difficult for casting production. The shovel heads and shovel bases should be interchangeable. That is, the newly manufactured shovel heads should not only interchange with the new shovel bases, but also with the old shovel bases. The fit size must be guaranteed.

 

If the fit clearance is too large, the bucket teeth are worn seriously in use, and the shovel base is quickly worn out. Because the shovel base is not often replaced, the bucket teeth manufacturers strictly control the size of the mould and the thickness of the paint brush in the production of bucket teeth. Specially made special testing samples.

 

The melting process of the bucket teeth mainly uses 0.15t medium frequency electric furnace to melt and starts to use low power to transmit electricity.

 

Full power transmission is gradually used to melt, and the melting time is shortened as far as possible to reduce the melting loss of each element and the oxidation of molten steel. Slag-making agent such as broken glass is used in liquid steel slagging, and low carbon ferromanganese and ferrosilicon are added to deoxidize in furnace. Thermocouple electronic thermometer is used for temperature measurement; molten steel melts to 1620 degrees Celsius; final deoxidation is carried out with pure aluminium wire in the pouring ladle and the test block is poured before pouring.

 

In addition, pouring temperature directly affects the forming and internal quality of bucket teeth castings, too high is easy to stick sand, and easy to produce shrinkage holes. Because of the uneven thickness of bucket teeth, it is the key to determine a reasonable pouring temperature. After many pouring tests, the pouring overflow is finally determined to be 1520-1530 degrees Celsius.

 

Huangzuan Machinery established in 2008, is a specialized manufacturer of bucket teeth, bucket adaptor and side cutter which is used Caterpillar, Komatsu, Hyundai, Daewoo, Kobelco, Hensley, Liugong, Hitachi, XCMG, XGMA, Volvo, Esco, JCB .etc.

 With production facilities covering an area of 18136 square meters and staff of 100, our annual processing capability equals approximately 12,000 metric tons. we currently have the technology of lost wax casting, precoated sand casting, resin sand casting, have the advanced instrument such as spectromaxx, Brinell hardness tester, universal testing machine, metalloscope.