JB/T 50018-1999 Plastic Injection Molding Machine Product Quality Classification JB/T50018-1999 Standard Download Decompression Password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T50018-1999
Plastic Injection Molding Machine
Product Quality Classification
(Internal Use)
Published on 1999-12-30
National Bureau of Machinery Industry
Implemented on 2000-06-01wwW.bzxz.Net
JB/T50018—1999
This standard is a revision of JB/T50018-94 "Product Quality Classification of Plastic Injection Molding Machine". During the revision, the original standard was edited and the main technical content remained unchanged. This standard replaces JB/T50018-94 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 Technical Committee. The responsible drafting unit of this standard: Wuxi Grand Machinery Co., Ltd. The main drafters of this standard are: Xu Dafang, Lin Changji, Hu Ruidi, Rao Qichen, Yang Dunpei. 1 Scope
Machinery Industry Standard of the People's Republic of China
Plastic injection molding machine
Product quality classification
(Internal use)
JB/T50018-1999
Replaces JB/T50018-94
This standard specifies the quality grade, test method, sampling and evaluation method of plastic injection molding machine products. This standard is applicable to the product quality classification of thermoplastic, single screw, single station, horizontal plastic injection molding machine specified in JB/T7267-1994 "Plastic Injection Molding Machine".
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 all 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/T72671994 Plastic injection molding machine
3 Product quality level
Plastic injection molding machine products are divided into three levels: 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/T7267, the assessment items and index requirements of each level of plastic injection molding machine products shall also comply with the provisions of Table 1 to Table 6.
3.1 The actual injection quality shall comply with the provisions of Table 1. 3.2 The plasticizing capacity shall comply with the provisions of Table 2. 3.3 The injection rate shall comply with the provisions of Table 3. Note: For theoretical injection volumes not listed in the table, interpolation method is allowed to be used to calculate the actual injection quality, plasticizing capacity and injection rate values ​​respectively. 3.4 The noise value of the whole machine shall comply with the provisions of Table 4. 3.5 The number of oil leakage points of the hydraulic system shall comply with the provisions of Table 5. 3.6 The parallelism tolerance value between the mold installation surface of the movable template and the fixed template shall comply with the provisions of Table 6. 4 Test method
According to the provisions of Chapter 6 of JB/T7267-1994 5 Sampling and evaluation method
5.1 The sampled products must be batch products that have been inspected and qualified by the inspection department of the manufacturer and put into storage or shipped from the factory and have not been unpacked at the user's place. If the sample is less than or equal to 10 units, 1 unit will be selected, and if it is more than 10 units, 2 units will be selected. All test items will be tested once. 5.2/ To evaluate the product quality level, it must meet the technical requirements of all assessment items of the level, otherwise the level will be determined according to the lowest indicator achieved.
Approved by the State Bureau of Machinery Industry on December 30, 1999, implemented on June 1, 2000
Assessment items
JB/T50018-1999
Actual injection quality
Qualified products
Product quality grade
First-class products
Superior products
Assessment items
JB/T50018-1999
Plasticizing capacity
Qualified products
Product quality grade
Superior products
Assessment items
JB/T50018-1999
Table 3 Injection rate
Qualified products
Product quality grade| |tt||Superior products
Noise value of the whole machine
Number of oil seepage
Assessment items
Clamping force
Assessment items
Clamping force
JB/T50018-1999
Table 4 Noise value of the whole machine
Qualified products
>5000-14000
≥16000
5Number of oil seepage
Qualified products
≤2400
>2500-9000
≥10000
Product quality grade
Product quality grade
Parallelism tolerance value between mold mounting surfaces of templatesAssessment items
≥200-~250
>250-400
>400-630
>630-1000
>1000~1600
>1600-2500
≥200-250
>250-400
>400-630
>630-1000
>1000-1600
>1600~2500
Qualified products
Product quality grade
Superior products
Superior products
Superior products
Mechanical industry standards
Plastic injection molding machine
Product Product quality classification
(for internal use)
JB/T50018—1999
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing, zip code 100044)*
2Word count 12000
Format 880×1230
1/16Printing sheet 1/2
First edition in April 2000
Printing number 1-500
First printing in April 2000
Price 1000 yuan
99-1473
Mechanical Industry Standard Service Network: http/kvwwJB.ac.cn66681000 /
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