JB/T 51222-1999 Rice Husking and Milling Machine Product Quality Classification JB/T51222-1999 Standard Download Decompression Password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T51222-1999
Quality Classification of Combined Rice Milling Machines
(Internal Use)
Published on December 30, 1999
National Bureau of Machinery Industry
Implemented on June 1, 2000
JB/T51222-1999
This standard is a revision of JB/T5122.1~51222.3-94 "Quality Classification of Combined Rice Milling Machines". Compared with JB/T51222.1~51222.3-94, the main technical content of this standard has been changed as follows: Adjustment of the classification of non-conforming products. This standard replaces JB/T51222.1~51222.3-94 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Agricultural Machinery Standardization. The responsible drafting units of this standard are: China Agricultural Mechanization Science Research Institute, Hunan Agricultural Machinery Research Institute. The main drafters of this standard are: Chen Junbao, Yuan Xi. Scope
Machinery Industry Standard of the People's Republic of China
Quality Classification of Combined Rice Milling Machines
(Internal Use)
JB/T51222-1999
Replaces JB/T51222.1~51222.3-94
This standard specifies the quality indicators, test methods and inspection rules of combined rice milling machines. This standard applies to the quality inspection and quality classification of combined rice milling machines (hereinafter referred to as combined rice mills). 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 are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB 1350—1986
GB 1354—1986
GB/T2828—1987
GB/T 5495—1985
JB/T5673—1991
JB/T9818.2—1999
Quality indicators
Batch-by-batch inspection counting sampling procedures and sampling tables (applicable to inspection of continuous batches) Grain and oil inspection Rice roughness rate inspection method) Painting of agricultural and forestry tractors and machinery
General technical conditions
Test method for milling combined rice machine
When the processed rice meets the third grade specified in GB1350-1986, the performance of the combined rice machine shall meet the requirements of Table 1. Table 1
Rice yield%
Among them:
Small broken rice
Approved by the State Machinery Industry Bureau on 1999-12-30 Early glaze
Qualified products
Quality grading index
First-class products
Conform to GB1354
≥091Kbzxz.net
≥093K
≥091K
Superior products
2000-06-01 Application
Electricity consumption per ton of material
Temperature rise of finished product
Dust concentration
Effectiveness
Grain content/g
JB/T51222-1999
Table 1 (finished)
Bran content
kw·ht
g(rice)/g(rubber)
K in the table is the roughness rate of rice,
the test calculation method shall be in accordance with the provisions of GB/T5495. The quality of assembly,
appearance and packaging shall comply with the requirements of Table 2Table 2
Assembly quality
Appearance quality
Appearance of coating
Adhesion of paint film
Packaging quality
Test method
Qualified products
Qualified products
Quality grading index
Quality grading index
Each moving part shall rotate flexibly,
Each fastener shall be firm and reliable,
Each adjustment device shall be flexible and reliable
No jamming.
No looseness.
Superior products
≥ 98
Superior products
The edges of the joint surfaces of product parts shall be neat and even, without obvious misalignmentNo leaking, desoldering and burn-through are allowed, and the exposed welds shall be trimmed, straight and even. The various labels on the products should be clear and durable, and fixed in a conspicuous position.
Exposed parts should be free of bumps and rust
Uniform color, flat and smooth,
No exposed bottom
Three places 2 level
Flat and smooth; no exposed bottom, no
Bright color:
Stained face, flow marks
Blistering and wrinkling
Two places 1 level
One place 2 level
Three places 1 level
The size and weight of the packaging box should comply with the relevant regulations of the transportation department. The packaging box should be firm and undamaged, with complete and clear markings on the box surface
The technical documents (instruction manual, quality certificate) and spare parts in the box are complete. The test conditions and requirements should comply with the provisions of Chapter 3 of JB/T9818.2-1999. 2 The determination of rice quality, electricity consumption per ton of material, temperature rise of finished products, dust concentration, noise and other items shall be carried out in accordance with the provisions of 4.2.3~4.2.74.2 in JB/T9818.2-1999. The determination of effectiveness, glue consumption and other items shall be carried out in accordance with the provisions of 5.3~5.6 in JB/T9818.2-1999. 4.3 The inspection of assembly quality, appearance quality, coating appearance and packaging quality shall be mainly based on visual inspection. The inspection of paint film adhesion in JB/T51222-1999 shall be carried out in accordance with the provisions of JB/T5673. 5 Inspection rules 5.1 Classification of unqualified items 5.1.1 Products shall be inspected and judged according to the classification of unqualified items listed in Table 3 and the sampling inspection plan in Table 4 in accordance with the counting sampling inspection procedure principles specified in GB/T2828.
5.1.2 Any inspected item that does not meet the requirements of Chapter 3 of this standard and relevant standards, drawings and technical documents is a non-conforming item. 5.1.3 Non-conforming items are divided into three categories: A, B and C according to their impact on product quality. Category A is for items that have a significant impact on the product; Category B is for items that have a greater impact on the product; Category C focuses on parts, assembly and manufacturing quality items. 5.2 Sampling method
5.2.1 Sampling inspection procedure According to the normal sampling plan of GB/T2828, special inspection level S-1 is adopted. 5.2.2 Random sampling is adopted, and random sampling is performed from products produced by the factory within the past year. When sampling the whole machine, the sample matrix should be no less than 16 units, and the parts should be no less than 16 sets (pieces). Sample 2 units for the whole machine and 2 sets (pieces) for the parts. Samples should be taken on the production line, or in the semi-finished product warehouse or finished product warehouse. This restriction is not applicable when sampling in the sales department. The samples taken should be qualified products of the corresponding grade. 5.3 Assessment rules
5.3.1 Products are sampled and judged according to the requirements of Table 4. The qualified quality level AQL, qualified judgment number Ac, and unqualified judgment number Re in the table are calculated by the point method (i.e. the number of unqualified items). 5.3.2 The assessment is conducted item by item. When the number of unqualified items in each category in the sample is less than or equal to the qualified judgment number Ac, the category is judged to have passed. The inspection should make a pass or fail decision according to the sampling inspection plan for each category. The grade that passes all three categories A, B, and C is determined as the product grade. Table 3 Items unqualified classification table
Unqualified classification
Dust concentration
Effectiveness
Rice processing accuracy
Rice output rate
Total broken rice rate
Grain content
Finished product temperature rise
Electricity consumption per ton of material
Small broken rice
Bran content
Assembly quality
Appearance quality
Painting quality
Paint film adhesion
Packaging quality
Item classification
Number of items
Inspection level
Sample code
Number of samples n||t t||Qualified products
First-class products
Superior products
JB/T51222-1999
Sampling judgment table
People's Republic of China
Mechanical industry standard
Quality classification of Binian combined rice machine
(Internal use)
JB/T51222-1999
Published and issued by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2, Shouti South Road, Beijing
Postal code 100044)
Book size 880X12301/16 Printing sheet 1/2 Number of words 10,000First edition in May 2000
First printing in May 2000
Price 10.00 yuan
Print run 1-500
No. 9-1707
Mechanical Industry Standard Service Network: http:/AwwwJB.ac.cn666
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