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GB/T 34596-2017

Chinese Standard: 'GB/T 34596-2017'
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Detail Information of GB/T 34596-2017; GB/T34596-2017
Description (Translated English): The technical specification for remanufacturing of automotive components - Oil pumps
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: T14
Classification of International Standard: 43.060.30
Word Count Estimation: 10,175
Date of Issue: 2017-10-14
Date of Implementation: 2018-05-01
Drafting Organization: Weichai Power Co., Ltd., Shandong High-density Runda Oil Pump Co., Ltd., Weichai Power (Weifang) Reman Co., Ltd.
Administrative Organization: National Automotive Standardization Technical Committee (SAC/TC 114)
Proposing organization: Ministry of Industry and Information Technology of the People Republic of China
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of PRC; China National Standardization Administration

GB/T 34596-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.060.30
T 14
The technical specification for remanufacturing of
automotive components - Oil pumps
汽车零部件再制造产品技术规范
机油泵
ISSUED ON. OCTOBER 14, 2017
IMPLEMENTED ON. MAY 1, 2018
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Disassembly, classification, and cleaning requirements ... 5 
5 Testing and repair requirements ... 5 
6 Assembly requirements ... 9 
7 Performance requirements ... 10 
8 Inspection requirements ... 10 
9 Marking and packaging requirements ... 11 
The technical specification for remanufacturing of
automotive components - Oil pumps
1 Scope
This Standard specifies the terms and definitions, disassembly, classification
and cleaning requirements, testing and repair requirements, assembly
requirements, performance requirements, inspection requirements, marking
and packaging requirements for remanufacturing of oil pumps.
This Standard is applicable to the remanufacturing of oil pumps for automotive
engines.
2 Normative references
The following documents are essential to the application of this document. For
dated references, only the editions with the dates indicated are applicable to
this document. For undated references, only the latest editions (including all the
amendments) are applicable to this document.
GB/T 6809.6 Reciprocating internal combustion engines -- Vocabulary of
components and systems -- Part 6. Lubricating systems
GB/T 26989 Automobile recovery -- Terminology
GB/T 28675 Remanufacturing of automotive components -- Disassembly
GB/T 28676 Remanufacturing of automotive components -- Classification
GB/T 28677 Remanufacturing of automotive components -- Cleaning
GB/T 28678 Remanufacturing of automotive components -- Pre-delivery
inspection
GB/T 28679 Remanufacturing of automotive components -- Assembly
JB/T 8413.2-2010 Internal combustion engines -- Oil pumps -- Part 2.
Assemblies -- Methods for test
QC/T 289-2001 Technical specifications for oil pump of automotive engine
5.1.2.1 Defective pump bodies that are not affected by oil pressure or
mechanical forces may be repaired using stitching, welding repair, special glue
to bond the broken and cracked parts of castings, or other methods. After repair,
it is required to make a smooth surface by grinding. If it is on the machined
surface, APPLY grinding or cutting until it is flush with the reference surface.
5.1.2.2 Defects such as pores, blisters, etc. can be filled with professional
repair agents; or metal plugs with the same quality as the castings can be
embedded in plugs after the treatment is finished; or USE hot-melt materials for
spraying; or USE a variety of other welding process to repair, through the
addition of materials, followed by machining and cutting.
5.1.2.3 If the diameter of the pump body’s inner cavity (gear chamber, and
rotor chamber) is out of tolerance, it shall be repaired by the inner cavity inlaying
method. Or USE laser cladding, cold welding, spraying, and other methods to
restore the size.
5.1.2.4 Where the size of the shaft bore of the pump body is out of tolerance
or worn, the reaming method is used to eliminate wear trace. Then PROVIDE
an optional oversized lining. Or PROVIDE an oversized driven shaft after
enlargement of the driven shaft hole. Or USE laser cladding, cold welding,
spraying, and other methods to restore the inner hole size.
5.1.2.5 For the damages to machining plane, USE metal spraying or other
welding repair methods to repair, through the addition of materials, followed by
machining and cutting.
5.1.2.6 In the case that the remaining holes are damaged, the damaged
mating holes are pretreated and repaired by welding repair. The damages to
the threaded holes of non-high-strength bolts can be repaired by expanding the
threaded holes and re-inserting the silk sleeve. High-strength bolt holes are not
allowed to be repaired. If there is any damage, it shall be discarded.
5.1.2.7 If the above defects cannot be repaired, it shall be discarded.
5.2 Testing and repair of pump cover parts
5.2.1 Pump cover testing
5.2.1.1 Non-destructive testing methods can be used to detect whether the
pump cover has cracks, pores, blisters, etc.
5.2.1.2 TEST the dimensional tolerance, geometric tolerance, surface
structure, etc. of the pump cover.
5.2.2 Pump cover repair
5.2.2.1 If there are any defects such as cracks, pores, blisters, etc., the repair
7 Performance requirements
7.1 The basic performance requirements for remanufactured oil pumps shall
comply with the provisions of Chapter 4 in QC/T 289-2001.
7.2 The reliability test time of remanufactured oil pumps shall not be less than
350h. After the test, the performance shall comply with the provisions of 4.7 in
QC/T 289-2001.
8 Inspection requirements
8.1 Type inspection
8.1.1 The type inspection shall be carried out under one of the following
circumstances.
a) when finalizing the design for the first time, or the finalized products are
transferred to another factory for production;
b) after the formal production, there are major changes in process, etc., which
may affect the product performance;
c) after the formal production, PERFORM every two years;
d) when there is a major difference between the exit-factory inspection results
and the last type inspection results.
8.1.2 The type inspection items include.
a) oil absorption performance;
b) speed characteristics;
c) pressure characteristics;
Related standard:   GB/T 34595-2017  GB/T 28954-2012
   
 
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