Acceptance, re-examination and re-heat treatment
When the forging of a chemical composition, mechanical properties, appearance, size and tolerances are in line with ordering the contract requirements, to be acceptance.
2 When the demand side there are other additional requirements, supply and demand should be mutually agreed to implement the agreement.
3 re-examination and re-heat treatment
3.1 in the pilot project provided for in any one test result does not meet the standard requirements, allows for re-examination. Re-examination of the specimen should be
Failed specimen taken near the adjacent locations. Mechanical properties shall be taken as twice the specimen re-examination, re-examination results should all meet the standard requirements. When
Can not take φ10 mm tensile specimen, it can take φ5 mm instead of the tensile specimen.
3.2 When any test results are below a re-examination, re-forging heat treatment, and re-sampling test. To re-heat treatment of the sub -
The largest number of no more than 3 times, tempering unlimited number of times.