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QC/T 1074-2017 English PDF

QC/T 1074-2017 (QC/T1074-2017, QCT 1074-2017, QCT1074-2017)
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BASIC DATA
Standard ID QC/T 1074-2017 (QC/T1074-2017)
Description (Translated English) The technical specification for remanufacturing of automotive components-Cylinder head
Sector / Industry Automobile & Vehicle Industry Standard (Recommended)
Word Count Estimation 7,798
Date of Issue 2017-04-12
Date of Implementation 2017-10-01
Drafting Organization China National Heavy Duty Truck Group Jinan Fuqiang Power Co., Ltd.
Regulation (derived from) Ministry of Industry and Information Technology Bulletin 2017 No.14
Summary This standard specifies the terms and definitions, disassembly, cleaning, classification, inspection and repair, factory inspection requirements and other requirements for automotive engine cylinder head remanufacturing.


QC/T 1074-2017 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 head ISSUED ON: APRIL 12, 2017 IMPLEMENTED ON: OCTOBER 01, 2017 Issued by: Ministry of Industry and Information Technology of PRC Attachment: Number, name and date of implementation of 22 automotive industry standards No. Standard number Standard name Number of standard replaced Date of implementation 301 QC/T 727-2017 Instrument for automobile and motorcycle QC/T 727-2007 2017-10-01 302 QC/T 803-2017 Oxygen sensor for automobile QC/T 803.1-2008 2017-10-01 303 QC/T 1072-2017 Gear position sensor for automobiles 2017-10-01 304 QC/T 1073.1-2017 Accelerometers for automobiles - Part 1: Linear accelerometers 2017-10-01 305 QC/T 1074-2017 Technical specifications for automotive parts remanufacturing products 2017-10-01 306 QC/T 1075-2017 Technical conditions for metal honeycomb carrier of exhaust catalytic converter 2017-10-01 307 QC/T 777-2017 Technical conditions for electromagnetic fan clutch of automobile QC/T 777-2007 2017-10-01 308 QC/T 1076-2017 Performance requirements and test methods for continuously variable transmission (CVT) 2017-10-01 309 QC/T 1077-2017 Terminology and definitions for classification of automatic control transmission for automobile 2017-10-01 310 QC/T 1078-2017 Advertising vehicle 2017-10-01 311 QC/T 1079-2017 Suction & delivery vehicle 2017-10-01 312 QC/T 1080-2017 Mobile loudspeaker for popularization of science 2017-10-01 313 QC/T 1081-2017 Electric power steering device for automobile 2017-10-01 314 QC/T 1082-2017 Motor for electric power steering device of automobile 2017-10-01 315 QC/T 1083-2017 Controller for electric power steering device of automobile 2017-10-01 316 QC/T 1084-2017 Sensor for electric power steering device of automobile 2017-10-01 317 QC/T 1085-2017 X-ray testing for light-alloy wheel of motorcycle 2017-10-01 318 QC/T 1086-2017 Technical conditions for range extenders for electric vehicles 2017-10-01 319 QC/T 1087-2017 Technical conditions for pure-electric city sanitation vehicle 2017-10-01 320 QC/T 1088-2017 Technical conditions for charge & discharge type motor controllers of electric vehicles 2017-10-01 321 QC/T 1091-2017 Technical conditions for air purification device of passenger car 2017-10-01 322 QC/T 740-2017 Seat assembly for passenger car QC/T 740-2005 2017-10-01 Table of Contents Foreword ... 7  1 Scope ... 8  2 Normative references ... 8  3 Terms and definitions ... 8  4 Requirements for dismantling, cleaning, classification ... 8  5 Inspection and repair ... 9  6 Exit-factory inspection requirements ... 10  7 Marking and packaging requirements ... 11  The technical specification for remanufacturing of automotive components - Cylinder head 1 Scope This standard specifies the terms and definitions, dismantling, cleaning, classification, inspection and repair, exit-factory inspection requirements, and other requirements for the remanufacturing of automobile engine cylinder heads. This standard is applicable to the remanufacturing of automobile engine cylinder heads. The remanufacturing of other motor vehicle cylinder heads may refer to this standard. 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 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 3 Terms and definitions The terms and definitions, which are defined in GB/T 26989, apply to this standard. 4 Requirements for dismantling, cleaning, classification 4.1 Disassembly 4.1.1 The dismantling of the cylinder head shall comply with the provisions of GB/T 28675. head. The surface of the combustion chamber can be processed and repaired, by grinding within the specified range, to meet the specified dimensional tolerance requirements; OR match the thickened original cylinder head product drawings or the cylinder head liner, which is specified by the enterprise, to restore its fit clearance. OR pre-treat the surface of the combustion chamber; repair it by adding materials such as spraying or electroplating; then perform grinding, to restore to the original cylinder head product drawings or the dimensional tolerance requirements, which are specified by the company. 5.5 Check all holes in the cylinder head. Carry out pretreatment on the damaged light hole. Repair it by cold welding and other methods, so as to meet the tolerance size requirements, which are specified by the original cylinder head product drawings or the company. For the damaged threaded hole, if the company’s requirements allow it, it may use the enlarged threaded hole and the method of re-inserting the wire sleeve, to restore to the original cylinder head product drawings or the dimensional tolerance requirements, which are stipulated by the enterprise. 5.6 Check all parts of the cylinder head for carbon deposits, oil stains, etc. It can be cleaned with cleaning fluids, such as carbon deposit removal and oil removal; OR use high-pressure (cold or hot) water jets, to wash the cylinder head surface, bottom hole, oil passage, water passage and other parts, to remove dirt. For diesel engines, it can use pyrolysis method. For dirt that is hard to clean, it may use such repair methods, as surface shot blasting, local sandpaper grinding, etc., meanwhile prevent the secondary damage to the non-shot blasting surface. 6 Exit-factory inspection requirements 6.1 Each remanufactured cylinder head shall be subject to corresponding flaw detection and pressure testing, as well as inspection of key dimensions, in accordance with the technical requirements of the corresponding remanufactured product or original product drawings. 6.1.1 The surface-repaired remanufactured cylinder head shall be inspected, by fluorescent flaw detection, magnetic particle flaw detection and other flaw detection methods, to ensure that there are no cracks on the surface. 6.1.2 Each cylinder head shall be inspected for tightness, according to the technical requirements of the remanufactured product drawings. 6.1.3 The key dimensions (inner diameter of valve guide hole, depth of valve seat ring, etc.) shall be inspected; corresponding records shall be made. 6.2 Cleanliness testing is required after the cylinder head is machined, to meet relevant requirements. ......