JB/T 53121-1999 Product quality classification of turntable injection molding machines for shoes JB/T53121-1999 standard download decompression password: www.bzxz.net
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Machinery Industry Standard of the People's Republic of China JB/T53121-1999 Turntable Injection Molding Machine for Shoes Product Quality Grading (For Internal Use) Published on 1999-12-30 National Bureau of Machinery Industry Implemented on 2000-06-01 JB/T53121-1999 This standard is a revision of JB/T53121-94 "Turntable Injection Molding Machine for Shoes Product Quality Grading". During the revision, the original standard was edited and the main technical content remained unchanged. This standard replaces JB/T53121-94 from the date of implementation. This standard was proposed and managed by the National Technical Committee for Rubber and Plastic Machinery Standardization and the Plastic Machinery Standardization Sub-Technical Committee. The responsible drafting unit of this standard: Hubei Echeng General Machinery Group Corporation. The main drafters of this standard are Zhou Hanbo and Chen Donglin. I 1 Scope Machinery Industry Standard of the People's Republic of China Rotary Injection Molding Machine for Shoes Product Quality Grading (Internal Use) JB/T53121-1999 Replaces JB/T53121-94 This standard specifies the quality grade, test method, sampling and evaluation method of rotary injection molding machine for shoes. This standard is applicable to the product quality grading of rotary injection molding machine for shoes (hereinafter referred to as shoe machine) specified in JB/T5289-1991 "Rotary Injection Molding Machine for Shoes". 2 Referenced Standards The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest version of the following standards. JB/T52891991 Turntable Injection Molding Machine for Shoes 3 Product Quality Grade Shoe machine products are divided into three grades: qualified products, first-class products and superior products according to their quality level and use value. In addition to complying with the provisions of JB/T5289, the assessment items and index requirements of each grade of shoe machine products shall also comply with the provisions of Table 1 and Table 2. 1 The main performance parameters shall comply with the provisions of Table 1. The measured injection quality, injection rate and plasticizing capacity shall not be less than 95% of the values in the table. 3.1 Table 1 Performance parameters Assessment items Measured injection quality Injection rate Plasticizing capacity Rated output Unit consumption index kW/(double/h) Qualified products ≥500 ≥100bzxZ.net ≥100 Noise and the number of oil leakage in the hydraulic system shall comply with the requirements of Table 2. Approved by State Machinery Industry Bureau on December 30, 1999Product quality grade ≥515 ≥105 ≥110 Superior product ≥ 530 ≥110 ≥ 120 Implemented on June 1, 2000 Assessment items Noise (sound pressure level) dB (A) Rated working pressure Number of oil leakage Test method JB/T53121-1999 Product test method shall comply with the provisions of JB/T5289. 5 Sampling and evaluation method Noise and oil leakage number Qualified products Superior products The sampled products must be batch products that have passed the inspection of the manufacturer's inspection department and are not unpacked at the user's place or have been put into storage. The sampling samples shall not be less than 2 units. All test items shall be tested and evaluated at one time to determine the product quality grade. The product must meet the technical requirements of all assessment items of the grade. Otherwise, the grade shall be determined according to the lowest indicator achieved. 5.2 People's Republic of China Machinery Industry Standard Shoe turntable injection molding machine Product quality classification (internal use) JB/T 53121-1999 Published by the Mechanical Science Research Institute Printed by the Mechanical Science Research Institute (No. 2, Shouti South Road, Beijing Postal Code: 100044) Sheet 1/2 Words 6000 Format 880×1230 First edition in April 2000 First printing in April 2000 Price 10.00 yuan Number 1-500 Number 99-1490 Mechanical Industry Standards Service Network: http:/wwwJB.ac.cn666 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.