Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Measuring a weight or volume
Patent
1995-04-06
1998-05-05
Ortiz, Angela
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Measuring a weight or volume
2642975, 2642977, 2642978, B29C 3502, B29C 3906, B29C 3944
Patent
active
057469539
ABSTRACT:
It is an object of the invention to provide a casting method for forming a resin molding which is able to cast the resin molding according to an assembly line production system while completely eliminating variations in quality between products. In the casting method according to the present invention, a plurality of metal molds are circulated at a given time difference in the order of a step of casting a hardenable resin composition into a preheated metal mold, a step of heating and hardening the casted resin composition, and a step of releasing the hardened product from the metal mold and assembling the metal mold. There are provided a plurality of heating devices and, while one metal mold in the hardening step is being heated by one of the heating devices, the other metal mold is heated at the above given time difference by the other of the heating devices.
REFERENCES:
patent: 1693264 (1928-11-01), Waner
patent: 3619447 (1971-11-01), Kerna
patent: 4957671 (1990-09-01), Morris
patent: 4961888 (1990-10-01), Brown
patent: 5135685 (1992-08-01), Masuhara et al.
patent: 5135686 (1992-08-01), Masuhara et al.
Fujita Tatsuya
Kubo Takehiko
Nakamura Takashi
Nakanishi Masaru
Sakurai Masashi
Nitto Denko Corporation
Ortiz Angela
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