Washing method for workpiece

Details Washing method for workpiece Washing method for workpiece

1992-07-15

1995-02-07

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Recycling of reclaimed or purified process material

Of gaseous process material

65 27, 134 10, 264233, 264344, B29C 7100

Patent

active

053873793

ABSTRACT:
A washing method for a workpiece, a resin molded product and a manufacturing method for a resin molded product. There are three steps involved, a detergent washing step, a rinsing step and a drying step. In the detergent washing step there is an additional step in which the detergent water is separated into a condensed liquid and water vapor, the water vapor being discharged into the air. The apparatus used in the method consists of degreasing baths, and withdrawal baths for the detergent wash, a pure water bath for rinsing and a drying bath. The apparatus also has an air heating unit which supplies hot air to form the water vapor in the separation step of the detergent water.

REFERENCES:
patent: 3558765 (1971-01-01), Bruner et al.
patent: 3979220 (1976-09-01), Ishiyama et al.
patent: 4327048 (1982-04-01), Nyman et al.
patent: 4379525 (1983-04-01), Nowicki et al.
patent: 4383961 (1983-05-01), Nyman et al.

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