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QC/T 1070-2017

Chinese Standard: 'QC/T 1070-2017'
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Detail Information of QC/T 1070-2017; QC/T1070-2017
Description (Translated English): (Automobile parts remanufacturing products - Technical specification Cylinder assembly)
Sector / Industry: Automobile & Vehicle Industry Standard (Recommended)
Date of Issue: 2017-01-09
Date of Implementation: 2017-07-01
Regulation (derived from): Ministry of Industry and Information Technology Announcement No.2 of 2017
Summary: This standard specifies the terms and definitions, remanufacture, classification and cleaning requirements, inspection and repair requirements, assembly requirements, inspection requirements, and marking and packaging requirements for the remanufacturing of ignition-type and compression-ignition engine block assemblies.

QC/T 1070-2017
QC
AUTOMOBILE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.060.10
T 12
The technical specification for remanufacturing of
automotive components - Cylinder block assembly
汽车零部件再制造产品技术规范
气缸体总成
ISSUED ON. JANUARY 9, 2017
IMPLEMENTED ON. JULY 1, 2017
Issued by. Ministry of Industry and Information Technology of the
People's Republic of China
Table of Contents
Foreword ... 3 
1 Scope ... 10 
2 Normative references ... 10 
3 Terms and definitions ... 10 
4 Disassembly, classification and cleaning requirements ... 11 
5 Testing and repair requirements ... 11 
6 Assembly requirements ... 14 
7 Inspection requirements ... 14 
8 Mark and packaging requirements ... 14 
Annex.
References, names and dates of implementation of 42 automotive industry
standards
No. Standard reference Standard name
Standard
reference being
substituted
Date of
implementation
250 QC/T 776-2017 Motor caravan QC/T 776-2007 2017-07-01
251 QC/T 1051-2017 Coach car 2017-07-01
252 QC/T 1052-2017 Communication vehicle 2017-07-01
253 QC/T 1053-2017 Concrete spraying vehicle 2017-07-01
254 QC/T 1054-2017 Tunnel cleaning vehicle 2017-07-01
255 QC/T 1055-2017 Drainage and rescue vehicle 2017-07-01
256 QC/T 218-2017
Technical
specifications for
steering column
upper combined
switch of automobile
QC/T 218-1996 2017-07-01
257 QC/T 1056-2017
Technical
requirements and test
methods for
automotive dual
clutch automatic
transmission
assembly
2017-07-01
258 QC/T 245-2017
Technical
specifications for
isolated plant of
compressed-natural-
gas (CNG)
automobile
QC/T 245-2002 2017-07-01
259 QC/T 247-2017
Technical
specifications for
isolated plant of
liquefied petroleum
gas
QC/T 247-2002 2017-07-01
260 QC/T 1057-2017 Car snow chains 2017-07-01
261 QC/T 1058-2017 Car fingerprint identification device 2017-07-01
273 QC/T 1060-2017
Automotive
hexagonal flower
flange bolts
2017-07-01
274 QC/T 1061-2017
Road transport
lightweight fuel tank
vehicle anti-overflow
system
2017-07-01
275 QC/T 1062-2017
Road transport
lightweight fuel tank
vehicle unloading
valve
2017-07-01
276 QC/T 1063-2017
Road transport
lightweight fuel tank
vehicle oil and gas
recovery components
2017-07-01
277 QC/T 1064-2017
Road transport
flammable liquid
dangerous goods
tank vehicle -
breathing valve
2017-07-01
278 QC/T 1065-2017
Road transport
flammable liquid
dangerous goods
tank vehicle -
manhole cover
2017-07-01
279 QC/T 789-2017
Performance
requirements and
bench test methods
of automobile electric
vortex retarder
assembly
QC/T 789-2007 2017-07-01
280 QC/T 316-2017
Bench test methods
of fatigue strength for
automobile service
brake
QC/T 316-1999 2017-07-01
281 QC/T 201-2017
Nylon pipe joint size
for automobile air
brake
QC/T 201-1995 2017-07-01
282 QC/T 1066-2017
Performance
requirements of cable
assembly for vehicle
parking brakes and
bench test method
2017-07-01
The technical specification for remanufacturing of
automotive components - Cylinder block assembly
1 Scope
This Standard specifies the terms and definitions, disassembly, classification
and cleaning requirements, testing and repair requirements, assembly
requirements, inspection requirements, marks and packaging requirements of
ignition, compression ignition engine cylinder block assembly remanufacturing.
This Standard is applicable to the remanufacturing of automobile engine
cylinder block assembly.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 6809.1, Reciprocating internal combustion engines - Vocabulary of
components and systems - Part 1. Structure and external covers
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
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T
6809.1 and GB/T 26989 apply.
5.3 Geometric accuracy detection and repair of main bearing housing
bore and thrust surface of cylinder block
5.3.1 Assemble the cylinder block assembly according to the bolt torque
specification specified by the enterprise. Test main bearing housing bore and
thrust face geometry.
5.3.2 If the dimensions and geometric tolerances are out of tolerance, it can
use the following methods to repair. Discard if it cannot be fixed.
a) Use mechanical processing method, with a small margin to remove the
tile cover or crankcase joint surface Tighten the bolt torque twice. Recover
or increase the nominal size of the main bearing housing by machining.
Restore its geometric tolerance of geometrical tolerance. Match the
corresponding standard or dedicated crankshaft to the machined main
bearing housing bore. Recover the final dimensional accuracy
requirements for remanufactured products.
b) Repair by adding materials and then processing by metal spraying or
welding repair.
5.4 Plane flatness testing and repair on cylinder block
5.4.1 Test the accuracy of the upper plane flatness.
5.4.2 If the flatness is too poor, use the following methods to repair. Discard if it
cannot be fixed.
a) machine and cut the upper plane, matching the corresponding thickened
cylinder head gasket, restoring the fit clearance.
b) pre-treat the upper plane, repairing by adding mat......
Related standard:   QC/T 1060-2017  QC/T 1061-2017
   
 
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