GB/T 31208-2014The methods of quality evaluation for remanufacturing core (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules.

1 Scope

This standard specifies the basic method for remanufacturing rough quality testing, including remanufacturing rough appearance quality, internal defects and special properties Test methods.

This standard is applicable to mechanical products remanufacturing production, management and scientific research, other work can use and reference.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 28619 remanufacturing term

Radioactive waste SN/T 0570 for imported raw materials contaminated inspection procedures

3 General

3.1 remanufacturing blank range should be determined according to the type of GB/T 28619.

3.2 remanufacturing blanks before the quality inspection should meet the technical requirements of the selected test methods.

3.3 remanufacturing quality inspection includes remanufacturing blank blank appearance quality, internal defects and test methods other special properties. Remake Made rough appearance quality refers to the rough shape remanufacturing capacities to meet; refers to internal defects that exist within the remanufacturing blanks unreasonable or Unsafe imperfections; remanufacturing blanks special performance test refers relates to environmental protection and electrical safety-related performance.

3.4 pairs when re-manufacturing quality inspection blanks, blanks should be prepared remanufacturing quality inspection standards and work instructions.

3.5 pairs Reman quality blank inspection, we should give priority to the use of non-destructive testing techniques.

Select 3.6 NDT technology should take full account of remanufacturing blank material, structure, manufacturing processes, service conditions and non-destructive testing techniques to Maturity and other factors.

4 Remanufacturing rough appearance quality test methods

4.1 appearance quality test should be based on actual demand for remanufactured products, select the test content and test methods. Inspection includes the shape of the part Size, local deformation, wear, corrosion, early fatigue, residual stress and surface crack detection. Sampling and test methods including full inspection, etc. Different ways.

4.2 deformation, wear amount may be obtained by measuring the size. According to statistics prioritize fault detection site, according to the shape of the detection site Seeking to determine the detection tool.

a) for the measurement of remanufacturing blanks geometry of simple shapes, can be used to meet the requirements of conventional gaging.

b) For size measure complex three-dimensional parts, should choose a professional tool that can refer to Appendix A.

4.3 surface corrosion can be tested in combination magnifying glass and other visual aids manually.

4.4 surface crack remanufacturing blanks according to material properties, structure, size and use, choose a method A technical appendix.

4.5 pairs of alternating load to bear the fatigue critical remanufacturing blanks need to evaluate the degree of fatigue damage early, Appendix A selection of technical methods.

4.6 Detection remanufacturing rough surface residual stress state in Appendix A to select a method.