QC/T 1012-2015Technical requirements and determination method for cleanliness of automotive hydraulic power steering systems (English PDF)
汽车液压助力转向系统清洁度技术要求及测定方法
This is a limited preview
Buy now to download the full PDF (16 pages)
Need quotation for your management?
Get a formal quotation for QC/T 1012-2015 in 30 minutes.
Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
July 14, 2015
Implementation date
January 1, 2016
Scope
QC/T 1012-2015 is the English-translated version of 汽车液压助力转向系统清洁度技术要求及测定方法.
QC/T 1012-2015 tells makers of automotive hydraulic power steering parts how clean those parts must be and how the cleanliness is measured. Clause 1 applies it to the steering gear, oil pump, oil tank, power cylinder, oil tube and joints, and clause 5 sets the impurity content allowed, no more than 5 mg for a joint.
Clause 6 describes the work: staff, equipment and room are prepared and the cleaning solution filtered as required by QC/T 573; holes and tube joints are plugged and the outside washed first, the turbid liquid from that wash being left out of the assessment; a steering gear, pump or power cylinder is then filled with clean solution and circulated ten times by hand, while a tank, tube or joint is filled to two thirds of its volume and shaken ten times in three directions, the operation repeated once.
Clause 7 covers the analysis of the impurities collected. Issued on 14 July 2015, it has applied since 1 January 2016.
Found what you need?
Document preview — QC/T 1012-2015
National Standard of the People's Republic of China
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- Foreword6
- 1 Scope7
- 2 Normative References7
- 3 Terms and Definitions8
- 4 Principle8
- 5 Technical Requirements8
- 6 Test Method10
- 7 Impurity Analysis11
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009 Directives for Standardization - Part 1. Structure and Drafting of Standards. […]
1 Scope
This Standard specifies the technical requirements and determination for cleanliness of automotive hydraulic power steering system (hereinafter referred to as system) components.
This Standard is applicable to the automotive hydraulic power steering system components including automotive hydraulic power steering gear, steering oil pump, steering oil tank, steering power cylinder, steering oil tube, and joint.
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) are applicable to this document.
GB/T 3730.1 Motor Vehicles and Trailers - Types - Terms and Definitions
GB/T 5179 Motor Vehicles - Steering System - Terms and Definitions
GB/T 6003.1 Test Sieves of Metal Wire Cloth
GB/T 14039 Hydraulic Fluid Power - Fluids - Method for Coding the Level of Contamination by Solid Particles
GB/T 17446 Fluid Power Systems and Components - Vocabulary
GB/T 20461-2006 Rubber Hoses and Hose Assemblies for Automobile Power - Steering Systems - Specification
QC/T 299.1-2014 Automobile Hydraulic Steering Power Pump - Part 1. Technical Requirements
QC/T 301-2014 Technical Requirements and Test Methods for Motor Vehicles Power Cylinder
5 Technical Requirements
The impurity content of joints shall be no greater than 5mg. […]
6 Test Method
6.1 Preparation
6.1.1 Make the pre-test preparation for the people, things and environment as per the provisions of QC/T 573.
6.1.2 After the final inspection of the product, normal exit-factory state shall be subject to.
6.1.3 The cleaning solution for cleaning shall be filtered as per the requirements of QC/T 573.
6.1.4 The operation shall be maintained consistent during the cleaning process, so that the results have higher repeatability and producibility.
6.2 Appearance cleaning
6.2.1 Before cleaning, all holes and tube joints shall be blocked.
6.2.2 Use clean cleaning solution to clean the product from the appearance.
6.2.3 The turbid liquid produced during the cleaning process shall not participate in the evaluation of cleanliness.
6.3 Internal cleaning of the non-disassembled components
6.3.1 Inner-cavity, and sealed product components
6.3.2 The test products are automotive hydraulic power steering gear, steering oil pump, steering power cylinder; use clean inlet tube to fill the product internal part with clean cleaning solution from the container; under no-load condition, rotate by hand, circulate for 10 times; collect the turbid liquid into clean container; wash with certain amount of clean cleaning solution, shake the assembly, then collect the turbid liquid together with that generated after the grinding.
6.3.3 The test products are steering oil tank, steering oil tube, joints; use clean inlet tube to fill the 2/3 volume of product internal part with clean cleaning solution from the container; then shake for 10 times in the front and back, left and right, up and down directions; wash the products; collect the turbid liquid into the clean container; repeat the operation for once; then collect the turbid liquid generated during the two operations.
6.3.4 Use the clean oil return tube to return the turbid liquid to the container […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 16 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 3730.1Terms and definitions of motor vehicles, trailers and combination vehicle— Part 1: Types
- GB/T 6003.1Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth
- GB/T 14039Hydraulic fluid power—Contamination analysis—Method for coding the level of contamination by solid particles
- GB/T 17446Fluid power systems and components - Vocabulary
- GB/T 20461-2006Rubber hoses and hose assemblies for automobile power-steering systems -- Specification
- QC/T 299.1-2014Automotive hydraulic power steering pumps - Part 1: Technical requirements
GB/T 5179
Similar standards
How to Download QC/T 1012-2015
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB/T 14039-2002 — Hydraulic fluid power -- Fluids -- Method for coding the level of contamination by solid particles
GB/T 14039-2026 — Hydraulic fluid power—Contamination analysis—Method for coding the level of contamination by solid particles
GB/T 17446-2024 — Fluid power systems and components - Vocabulary
Secure payment via Stripe
Payments accepted
QC/T 1012-2015
$85.00