Standard No.:	JB/T 9021-2010
English Name:	Thermal Stability Test Method of Steam Turbine Main Shafts and Rotor Forgings
Chinese Name:	汽轮机主轴和转子锻件的热稳定性试验方法
Chinese Classification:	J32    Forging and pressing
Professional Classification:	JB    Professional Standard - Machinery
ICS Classification:	77.140.85 77.140.85    Iron and steel forgings 77.140.85
Issued by:	MIIT
Issued on:	2010-2-11
Implemented on:	2010-7-1
Status:	valid
Superseding:	JB/T 9021-1999
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	164.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the thermal stability test method of steam turbine main shafts and rotor forgings. This standard is applicable to the thermal stability test of steam turbine main shafts and rotor forgings to ensure the stable operation of steam turbine main shafts and rotor forgings under operation temperature. 2 Order Requirements 2.1 If the thermal stability test is required by the demander, the minimum temperature of thermal stability test shall be specified on the order drawing and the test position, the required quantity of test tapes as well as the section of heating chamber where the forging shall be placed shall be indicated on the forging drawing. 2.2 The thermal stability test shall be carried out by the supplier after final heat treatment. In case the condition of supplier does not allow, the test may also be carried out by the demander.

Foreword 1 Scope 2 Order Requirements 3 Preparation before Test 4 Test Method 5 Acceptance 6 Test Report