3.2 the wax runner (die head) shall be nominally flat without bumps, cracks or flaps.

2.1.8 the wax runner is freezing and will be stored after 3 to 5 minutes without freezing. Then, the water drops will be blown with a compressed atmosphere and put in the designated position.

3. Notes

2.1.9 in case of each shift or final application of the last, the facilities and last shall be cleaned up.

3.3 do well the insurance task of the injection mould head. When the cylinder head of wax material is not screwed tight, it is strictly forbidden to open the tightening atmosphere in the cylinder, and the tightening atmosphere is not open. When the residual air in the cylinder is not put clean, it is strictly forbidden to open the cylinder head.

2.1.2 put the sprue (die head) trees on the tool platform, and check whether the tool wax nozzle can differ from the height of the tree tree's wax inlet, and whether the tree tree can be successfully opened and closed.

2.1.1 check whether the air pressure of the die head wax press, the measurement of the fresh-keeping barrel and the operation knob can be deformed, and adjust the injection pressure and other parameters of the parts according to the technical rules.

　3.4 the wax mold room should be well insured against fire.

2.1.3 open the last, spray a thin layer of parting agent, place the bolts, and close the last, for the quasi wax nozzle.

2.1 overall sprue depression

Precision casting operation sequence

Pressure time depends on the type of runner

Injection pressure 0.2-0.4mpa

Injection wax measure 70-75 ℃

Room temperature 24 ℃ plus or minus 10 ℃

1 process requirements

2.1.7 spray the parting agent, cast the bolts, close the mold, stop the next depression, and repeat consumption in this way.

3.1 no excessive parting agent is sprayed on the last mold cavity. If there are cracks, bumps, follicles and other defects in the wax runner (die head), the repair should be stopped, and those that cannot be repaired should be scrapped.

2.1.4 press the task knob with both hands to suppress the sprue (die head) wax mold. Note that defective parts should be scrapped.

2.1.6 sweep the remaining wax on the last.

2.1.5 when the last is repressed, the core is taken out, the last is opened, and the wax mold (die head) is accidentally saved in the sprue (die head) and put into the frozen water.