INDUCTION HARDENING FOR GRAIN PULVERIZER

INDUCTION HARDENING FOR GRAIN PULVERIZER

A method for thermally treating a roller of a grain pulverizer is provided to favorably pulverize grains without generating high heat due to friction by obtaining the desirable hardness by a simple high-frequency heat treatment operation and to prevent the deformation or separation of a surface part...

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1. Verfasser: KWON, SU AN
Format: Patent
Sprache:eng
Schlagworte:
CRUSHING, PULVERISING, OR DISINTEGRATING
CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL
MILLING GRAIN
PERFORMING OPERATIONS
PREPARATORY TREATMENT OF GRAIN FOR MILLING
TRANSPORTING
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creator KWON, SU AN
description A method for thermally treating a roller of a grain pulverizer is provided to favorably pulverize grains without generating high heat due to friction by obtaining the desirable hardness by a simple high-frequency heat treatment operation and to prevent the deformation or separation of a surface part. The heat treatment method for manufacturing a cast roller by cutting, heating the roller by high frequency, and then quickly cooling down the heated roller under the predetermined atmosphere comprises the steps of: pre-heating a center part of the roller by high frequency at the temperature of 830~850‹C for 10~15 minutes(S2); pre-heating the roller by high frequency at the temperature of 870~890‹C for 10 minutes(S3); and cooling down the roller by water(S4).
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recordid cdi_epo_espacenet_KR20070001330A
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subjects CRUSHING, PULVERISING, OR DISINTEGRATING
CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL
MILLING GRAIN
PERFORMING OPERATIONS
PREPARATORY TREATMENT OF GRAIN FOR MILLING
TRANSPORTING
title INDUCTION HARDENING FOR GRAIN PULVERIZER
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