GB/T 5772-2010 English PDF

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GB/T 5772-2010: Injector nozzle of diesel -- Specifications
Status: Valid

GB/T 5772: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 5772-2010	349	Add to Cart	3 days	Injector nozzle of diesel -- Specifications	Valid
GB/T 5772-1986	RFQ	ASK	3 days	Technical specification for fuel injection nozzles of diesel engines	Obsolete

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Basic data

Standard ID: GB/T 5772-2010 (GB/T5772-2010)
Description (Translated English): Injector nozzle of diesel -- Specifications
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J94
Classification of International Standard: 27.020; 43.060.40
Word Count Estimation: 15,162
Date of Issue: 2010-11-10
Date of Implementation: 2011-03-01
Older Standard (superseded by this standard): GB/T 5772-1986
Quoted Standard: GB 252-2000; GB/T 1031; GB/T 1958; GB/T 2828.1-2003; GB/T 2829-2002; GB/T 3077-1999; GB/T 8029; GB/T 9943-2008; GB/T 18254-2002; JB/T 6293-2006; JB/T 8121; JB/T 9730; JB/T 9734; JB/T 9736; JB/T 51184; YB/T 5302-2006
Regulation (derived from): National Standard Approval Announcement 2010 No.8 (Total No.163)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the medium power diesel injection nozzles technical requirements, test methods, inspection rules, signs, packaging, transport and storage. This standard applies to small and medium -power diesel engine fuel injection nozzles (hereinafter referred to as injection nozzles).

GB/T 5772-2010: Injector nozzle of diesel -- Specifications

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Injector nozzle of diesel. Specifications ICS 27.020; 43.060.40 J94 National Standards of People's Republic of China Replacing GB/T 5772-1986 Diesel injection nozzles Technical conditions Issued on. 2010-11-10 2011-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 5772-1986 "diesel injection nozzles and technical conditions." This standard compared with GB/T 5772-1986, the main changes are as follows. --- Increased by 1 Scope; --- Increased by 2 normative references, updated the material standard; --- Deleted the original standard use CrWMn alloy tool steel is defined in 3.2, the increase YB/T 5302 high-speed tool steel and GB/T 18254 using carbon chromium bearing steel requirements; --- In 3.2.4, the needle body and needle material, increasing the "Allow use 18CrNi8"; --- 3.3.1 carburizing depth of 0.4mm ~ 0.9mm add "but not penetration" and other instructions; --- In 3.3.2, the hardness of the needle "62HRC ~ 66HRC" to "not less than 60HRC"; --- In 3.3.3, the needle body and the hardness of the needle "62HRC ~ 66HRC" to "60HRC ~ 64HRC"; --- Increased by 3.4, needle and needle body magnetic particle testing requirements should be carried out; --- 3.5 in Table 1, the oblique circle of Article 4 of the needle valve body beating on short and long-hole-type requirements are made; --- 3.5 in Table 1, an increase of Article 5 of the sealing cone roundness requirements; --- 3.5 in Table 1, the flatness of Article 10 of the seal faces, lapping machining and grinding requirements were made; --- 3.5 in Table 1, the abolition of the original standard in Table 1 of Article 12 of the pressure chamber orifice head round-beating requirements; --- 3.5 in Table 1, the first 18 "sealing cone roundness" and 19 "near the outer circumference of the sealing cone or tapered transition circle Degree ", is the original standard Table 1. 18" close to the seal and seal cone outer cone roundness "exploded statements made; --- 3.6 in Table 2, an increase of surface roughness sphere or cone of Article 6 of the nozzle holes of the head; --- Increased 3.8 appearance quality needle body and needle requirements; --- In 3.10, Table 4 for a perfect, long-hole into S series and P, J series of requirements were made; --- In 3.13, the flow of injection nozzles made higher demands and increased fixed pressure 10MPa high-pressure liquid flow test Test methods and the flow coefficient test requirements; --- Increased 3.14, reliability injection nozzles, the abolition of the former mediator with the standard of the requirements; --- Increased 3.15, injection nozzles appearance quality requirements; --- An increase of 4.1 to 4.5, and other metallurgical, cracks and roughness needle and needle valve body inspection method; --- In 4.9, the flow test method for injection nozzles were perfect; --- Increasing the reliability of the test method 4.10; --- Increased 4.11 life assessment method; --- 5.2, the factory inspection items increased by 3.15 appearance quality; --- 5.3, the test sample rule to press GB/T 2828.1 and GB/T 2829 the relevant provisions; --- Increased 5.4 basis for acceptance of retail units and supporting units; --- Increased 5.5 injection nozzles even products quality inspection and sampling to determine the rules of eligibility requirements; --- Surface indicated in box 6.3, the increase of c) and g),; --- Added Appendix A "sample injection nozzles product quality inspection and qualified judgment rule." Appendix A of this standard is a normative appendix. The standard proposed by China Machinery Industry Federation. The fuel injection system standard by the National Standardization Technical Committee (SAC/TC396) centralized. This standard was drafted. Wuxi Institute of grease nipple pumps, Nantong Star Victoria Fuel Injection Equipment Co., Ltd. Shandong Xin Asia Industrial Co., Ltd. The main drafters of this standard. Zhuxi Fen, Lu Jian, Du Hongguang, Hua Tao. This standard replaces the standards previously issued as follows. --- GB/T 5772-1986. Diesel injection nozzles Technical conditions

1 Scope

This standard specifies the technical requirements, test methods, inspection rules for small and medium power diesel injection nozzles, logos, packaging, transport and Storage. This standard applies to small and medium power diesel injection nozzles (hereinafter referred to as injection nozzles).

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB 252-2000 light diesel oil GB/T 1031 Geometrical product specifications (GPS) Surface texture Profile method Surface roughness parameters and their values GB/T 1958 Geometrical Product Specifications (GPS) shape and position tolerance testing requirements GB/T 2828.1-2003 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch test sample Programme (ISO 2859-1.1999, IDT) GB/T 2829-2002 periodic inspection Sampling procedures and tables (suitable for process stability test) GB/T 3077-1999 alloy structural steel (neqDINEN10083-1.1991) GB/T 8029 diesel injection pump (GB/T 8029-2010, ISO 4113.1998, Roadvehicles- Calibrationfluidfordieselinjectionequipment, NEQ) GB/T 9943-2008 high speed tool steel (ISO 4957.1999, Toolsteels, NEQ) GB/T 18254-2002 high carbon chromium bearing steel JB/T 6293-2006 diesel injector test hand-pressure Injector Checker JB/T 8121 diesel fuel injection pump test bench with high-pressure hose assembly JB/T 9730 diesel injection nozzles, fuel pump Plunger, fuel pump outlet valve member metallographic examination JB/T 9734 fuel injection pump test bench conditions JB/T 9736 injector coupled parts, Plunger, Delivery Valve magnetic particle testing method JB/T 51184 injection nozzles for the evaluation of the reliability of the method, test methods and failure determination YB/T 5302-2006 high-speed tool steel

3 Technical requirements

3.1 injection nozzles shall be prescribed by the procedures approved products manufacturing drawings and technical documents, and comply with the requirements of the standard. 3.2 needle valve needle valve body and materials as specified below. 3.2.1 needle valve body is made of carbon steel or 25SiCrMoVA 18Cr2Ni4WA manufacture GB/T 3077-1999 stipulated; needle Adopted GB/T 9943-2008 or YB/T 5302-2006 specified in W6Mo5Cr4V2 or W18Cr4V or W4Mo3Cr4VSi W9Mo3Cr4V or high speed tool steel manufacturing. 3.2.2 needle valve body and needle may be used GCr15 high carbon chromium bearing steel GB/T 18254-2002 prescribed. 3.2.3 Regardless of the material, the steel should not appear naphthalene-shaped fracture tissue. ......

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