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QC/T 1098-2018 English PDF (QCT1098-2018)

QC/T 1098-2018 English PDF (QCT1098-2018)

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QC/T 1098-2018: Technical specification for powder metallurgy hub used in automotive clutch
This standard specifies the technical requirements and test methods for the powder metallurgy hub, which is used in the clutch driven plate assembly of passenger cars.
QC/T 1098-2018
QC
AUTOMOBILE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.50
T 21
Technical specification for powder metallurgy hub used in
automotive clutch
ISSUED ON: JULY 04, 2018
IMPLEMENTED ON: JANUARY 01, 2019
Issued by: Ministry of Industry and Information Technology of PRC
Annex:
Number, standard name, implementation date of 11 automotive industry
standards
No. Standard No. Standard name Replaced standard number
Date of
implementation
101 QC/T 645-2018 Tow truck QC/T 645-2005 2019-01-01
102 QC/T 1094-2018
General specification of lithium ion batteries for
motorcycle starting 2019-01-01
103 QC/T 1095-2018
Performance requirements and bench test
methods of motor vehicle assist vacuum pump 2019-01-01
104 QC/T 788-2018
Performance requirements and bench test
methods of automobile pedal device QC/T 788-2007 2019-01-01
105 QC/T 311-2018
Performance requirements and bench test
methods of motor vehicle brake master cylinder QC/T 311-2008 2019-01-01 106 QC/T 564-2018
Performance requirements and test methods for
passenger car service brake QC/T 564-2008 2019-01-01
107 QC/T 1096-2018
Bench test methods of fatigue life for torsion
beam rear axle of passenger cars 2019-01-01
108 QC/T 1097-2018
Bench test methods of fatigue life for front axle
horizontal module of passenger cars 2019-01-01
109 QC/T 491-2018
Automobile shock absorber technique
requirements and test methods
QC/T 491-1999
QC/T 545-1999 2019-01-01
110 QC/T 1098-2018
Technical specification for powder metallurgy
hub used in automotive clutch 2019-01-01
111 QC/T 1099-2018
Specification for collapsible spacer used in
automotive drive head assembly 2019-01-01
Table of Contents
Foreword ... 5
1 Scope ... 6
2 Normative references ... 6
3 Technical requirements ... 7
4 Detection method ... 8
Technical specification for powder metallurgy hub used in
automotive clutch
1 Scope
1.1 This standard specifies the technical requirements and test methods for the powder metallurgy hub, which is used in the clutch driven plate assembly of passenger cars. 1.2 This standard applies to the powder metallurgy hub (hereinafter referred to as hub) for clutch driven disk assemblies of passenger cars.
2 Normative references
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard.
GB/T 223.18 Methods for chemical analysis of iron, steel and alloy - The sodium thiosulfate separation iodometric method for the determination of copper content GB/T 223.23 Iron, steel and alloy - Determination of nickel content - The dimethylglyoxime spectrophotometric method
GB/T 223.26 Iron, steel and alloy - Determination of molybdenum content - The thiocyanate spectrophotometric method
GB/T 223.69 Iron, steel and alloy - Determination of carbon contents - Gas- volumetric method after combustion in the pipe furnace
GB/T 223.73 Iron steel and alloy - Determination of iron contents - Titanium trichloride-potassium dichromate titration method
GB/T 3478.1 Straight cylindrical involute splines - Metric module side fit - Part 1: Generalities
GB/T 3478.5 Straight cylindrical involute splines - Metric module side fit - Part 5: Inspection
GB/T 5163 Sintered metal materials, excluding hardmetals - Permeable sintered metal materials - Determination of density, oil content, and open porosity to the 6th grade accuracy, which is specified in GB/T 3478.1-2008. The accuracy grade can also be agreed between the supplier and the purchaser.
3.4 The hub shall be subjected to the static torsion test, 1 x 106 enhanced torsional endurance test or 5 x 106 torsional endurance test, in accordance with the test conditions specified in 4.4.1.2 and 4.4.2.1. It is required that the parts must not fail, after the test. 4 Detection method
4.1 Chemical composition and physical properties
4.1.1 The carbon content shall be measured according to the method specified in GB/T 223.69.
4.1.2 The copper content shall be determined according to the method specified in GB/T 223.18.
4.1.3 The nickel content shall be determined according to the method specified in GB/T 223.23.
4.1.4 The molybdenum content shall be determined, according to the method specified in GB/T 223.26.
4.1.5 Iron content shall be determined according to the method specified in GB/T 223.73.
4.1.6 Density shall be determined, according to the method specified in GB/T 5163. 4.1.7 Hardness shall be determined, according to the method specified in GB/T 9097.1. 4.2 Mechanical properties
4.2.1 For the tensile strength, prepare the tensile specimen, according to the method specified in GB/T 7963. Determine it according to the method specified in GB/T 7964. 4.2.2 For the impact toughness, prepare the impact specimen according to the method specified in GB/T 5318. Determine it according to the method specified in GB/T 9096. 4.3 Tooth and spline accuracy
The precision of tooth and splines shall be determined, according to the method specified in GB/T 3478.5.
4.4 Hub torsion test
4.4.1 Static torsion test of hub
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