JB/T 3233-1999 This standard is a revision of JB 3233-83 "Synthetic diamond sintered body for drilling". According to the requirements of GB/T 2828-1987 "Batch inspection counting sampling procedure and sampling table (applicable to continuous batch inspection)", the inspection and acceptance regulations have been revised. Its sampling plan and inspection level are consistent with "Triangular diamond sintered body for drilling". Other technical contents have not changed. This standard specifies the product code, shape and size, technical requirements, inspection rules and marking, and packaging of synthetic diamond sintered body for drilling. This standard is applicable to synthetic diamond sintered body synthesized by static pressure method for petroleum, metallurgy, geology, coalfield geological drill bits and reamer. This standard was first issued on June 4, 1983. JB/T 3233-1999 Synthetic diamond sintered body for drilling JB/T3233-1999 Standard download decompression password: www.bzxz.net

ICS25.100.70
Machinery Industry Standard of the People's Republic of China
JB/T3233—1999
Synthetic diamond sintered body for drilling
Published on May 20, 1999
National Bureau of Machinery Industry
Implementation on January 1, 2000
JB/T3233-1999
This standard is a revision of JB323383 "Synthetic diamond sintered body for drilling". The original standard acceptance inspection used an empirical formula to calculate the sampling quantity. This standard is revised to be inspected and accepted in accordance with the provisions of GB/T2828-1987 "Batch Inspection Count Sampling Procedure and Sampling Table (Applicable to Continuous Batch Inspection)", and its sampling plan and inspection level are consistent with the "Triangular Diamond Sintered Body for Drilling" standard. The other technical contents are basically consistent with JB323383, and only re-edited according to relevant regulations.
This standard replaces JB3233-83 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Abrasives and Grinding Tools. The drafting unit of this standard: Zhengzhou Abrasives and Grinding Research Institute. The main drafter of this standard: Huang Xiangfen.
This standard was first issued on June 4, 1983. 1 Scope
Machinery Industry Standard of the People's Republic of China
Synthetic diamond sintered body for drilling
JB/T3233-—1999
Replaces JB323383
This standard specifies the product code, shape and size, technical requirements, acceptance rules and markings, and packaging of synthetic diamond sintered bodies for drilling. This standard applies to synthetic diamond sintered bodies synthesized by static pressure method for petroleum, metallurgy, geology, coalfield geology drill bits and reamer, etc. 2 Cited standards
The clauses contained in the following standards constitute the clauses of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T2828-1987 Sampling procedures and sampling tables for batch inspection (applicable to inspection of continuous batches) GB/T3235-1999 Determination method of wear ratio of artificial diamond sintered body 3 Product code
Code for sintered body for drilling: JRS-Z
4 Shape and size
Sintered body for drilling
Artificial diamond
The shape of artificial diamond sintered body is shown in Figure 1, and the main dimensions are shown in Table 1. Type A flat head
Approved by the State Machinery Industry Bureau on May 20, 1999 Shape of the sintered body in Figure 1
Type B pointed head
Implementation on January 1, 2000
5 Technical requirements
JB/T3233-—1999
1.5,2.0,2.5,3.0,3.5,40
2.0,2.5，3.0，3.5,4.045
2.5.3.0,3.5,4.0,4.5,50
3.0，3.5，4.0，4.5，5.0
35，4.0,4.5，5.0
The dimensional deviations of the outer diameter and length of the artificial diamond sintered body are shown in Table 2. Table 2
Basic dimensions
Limit deviation
Basic dimensions
60-100
40,45,5.0,5.5
45,5.0,5.5,6.0
50,55,6.0,8.0
5.5,6.0,8.0
6.0.8.0,100
Limit deviation
After the artificial diamond sintered body is shaped, the defects caused by edge wear shall not exceed 10% of the diameter. For the unfired artificial diamond sintered body, the wear ratio shall be as specified in Table 3. Table 3
Test method
The dimensions are measured with a vernier caliper with a graduation value of 0.02mm. 6.1
The wear ratio shall be determined in accordance with the provisions of JB/T3235. 6.2
7 Acceptance rules
Abrasion ratio
20×10
≥40X10°
≥60×103
≥80×103
Product delivery inspection shall be carried out batch by batch in accordance with the technical requirements of this standard, and qualified products shall be accompanied by a certificate of conformity. 2 The number of packaged particles is used as the "inspection batch" of the product, and a normal inspection sampling plan is implemented according to the provisions of GB/T2828. 7.2
7.2.1 Inspection level
7.2. 1. 1
Basic size deviation inspection adopts "General Inspection Level II" 2
JB/T3233-1999
2Abrasion ratio inspection adopts "Special Inspection Level S-3". 7.2. 1.2
7.2.2 The qualified quality level (AQL) is 4.0. Marking and packaging
The following markings must be on the outer packaging:
a) Product name;
b) Manufacturer;bZxz.net
c) Product mark:
d) Registered trademark;
e) Packing quantity;
D Production date or batch number.
The packaging should be accompanied by a certificate of conformity, which should indicate: a) product name;
b) product model or specification;
c) quantity, batch number;
d) inspection stamp.
8.3 The product can be packed in double-layer plastic bags, with the certificate of conformity placed between the two layers. 8.4 The product should be packed in 50, 100, 200, 500, 1000, 2000 and 5000 pieces respectively. 8.5
The packaging should be beautiful and firm, ensuring easy carrying. 3
Mechanical Industry Standard
Sintered Synthetic Diamond for Drilling
JB/T3233-1999
Published by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing: Postal Code 100044)*
1/16 Printing Sheet 1/2 Number of Words 8000
Format 880×1230
First Printing in September 1999
First Edition in September 1999
Print Quantity 1-500
Price 500 Yuan
99-558
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