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DEVELOPMENT OF A NEW TYPE OF LOW-TEMPERATURE PATTERN WAX

The effects of several important components on casting waxes, such as low-melting point petroleum waxes, high-melting point waxes, stearic acid and additive 201 were investigated. A new type of LPW low-temperature pattern wax was developed by method of cooling curve. The experimental results showed that stearic acid and No. 56 petroleum wax could lower the casting temperature. No. 80 microcrystalline wax, No. 85 microcrystalline wax and additive 201 all could make the pattern wax crystal construction finer, although additive 201 was more effective than the microcrystalline waxes. The application tests showed that LPM pattern waxes were higher quality pattern waxes such as better gloss, higher rigidity and higher intensity than the original common low casting temperature pattern waxes.