新昌县高碳铬轴承钢热处理件质量监督抽查方案

2020-09-10

1. Scope of applicationIt is suitable for the quality supervision and spot check of high carbon chromium bearing steel heat treatment parts in Xinchang County of Shaoxing City. 2、 Number of samples Samples shall be randomly selected from the products to be sold at the end of the production line, warehouse or sales cabinet of the inspected unit. The inspected party shall provide the product execution standards in accordance with laws, regulations and documents. Six samples of the same specification and model shall be taken from each product, and the heat treatment status and other special heat treatment methods shall be indicated on the samples. 3、 Detection standard GB / T 34891-2017 & nbsp; rolling bearing high carbon chromium bearing steel parts heat treatment technical conditions. The quality index of the product and the relevant provisions of national laws, regulations and rules shall be clearly stated. The standard shall be indicated on the product package. 4、 Test items and Table 1 inspection items of martensitic quenching and tempering parts (the explicit implementation standard is GB / T 34891-2017) Table 1
Table 2 inspection items of bainite isothermal quenching and tempering parts (the explicit executive standard is GB / T 34891-2017)
5. Judging principle(1) General rules for determination1. When the technical requirements of the national, industrial and local mandatory standards (including the mandatory provisions in the national, industrial and local recommended standards) and the implemented enterprise standards (including explicit quality indicators), the quality judgment shall be conducted according to the most stringent requirements. 2. When the product complies with the national, industrial and local standards, the quality shall be determined according to the requirements of the national, industrial and local standards. 3. When the product complies with the enterprise standard (including the explicit quality index), the quality shall be determined according to the requirements of the enterprise standard. However, if the technical requirements of the main items are lower than the requirements of the national and industrial recommended standards (including the recommended provisions in the national, industrial and local mandatory standards), the measured values and standard values of the main items shall be indicated in the inspection report. (2) Single quality judgment According to the requirements of judgment array n / AC (RE), when the number of unqualified & le; AC, the project is judged to meet the requirements of the executive standard; when the number of unqualified & Ge; re, the item is judged not to meet the requirements of the executive standard. (3) Comprehensive quality judgment 1. If one or more items in the test sample do not meet the execution requirements, the inspection conclusion will be 'unqualified';. 2. If the products meet the requirements of the executive standards, and the inspection results of the main items inspected meet the requirements of the recommended provisions in the national, industrial and local standards, the inspection conclusion is that the inspected items meet the requirements of this supervision and random inspection;. 3. If the product meets the requirements of the executive standards, but one or more of the inspection results of the main items inspected are lower than the requirements of the recommended provisions in the national, industrial and local standards, the inspection conclusion is that the inspected items meet the enterprise standards, and fail to meet the national, industrial and local standards;. 6、 Objection handling principle 1. Application and acceptance of unqualified objectionIf the inspected person disagrees with the results of supervision and inspection, he / she shall, within 15 days from the date of receiving the inspection report, apply in writing to the Department (administrative organ) implementing supervision and random inspection or its superior competent authority for re inspection. The administrative organ that accepts the application for reexamination shall make a decision of acceptance within five working days from the date of accepting the application. If the administrative organ does not meet the re inspection conditions, it shall explain the reasons to the applicant in writing. 2. Retest samples 2If there is any objection to the test results of specific inspection items and it is really necessary to retest the unqualified items, the original samples shall be retested. 3. Retest conclusion 3If the re inspection results are still unqualified, the original inspection results shall remain unchanged; otherwise, the re inspection results shall prevail. 4. Re inspection cost If it is really necessary to reinspect the unqualified items, the applicant for objection shall pay the re inspection fee (including sample transportation fee) to the re inspection institution in advance within five working days from the date of receiving the acceptance notice; otherwise, it shall be deemed as giving up the right of objection. If the re inspection conclusion is inconsistent with the original inspection conclusion, the re inspection fee shall be returned by the original inspection institution to the dissenting applicant. 5. No re inspection(1) If the application for re inspection is submitted beyond the legal time limit; and(2) At the time of re inspection proposed by the inspected party, the product was invalid under normal storage conditions within the validity period of the re inspection; the product was invalid under normal storage conditions(3) The on-site inspection items will not be retested(4) Other situations that are not allowed to be rechecked according to laws and regulations. (information source: Xinchang County Market Supervision Bureau)

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