JB/T 8774.9-1998 Products produced according to this standard comply with the relevant provisions of GB/T 5226.1-1996 "Electrical Equipment in Machinery Industry Part 1: General Technical Conditions". This standard specifies the main dimensions, markings, technical requirements, tests and inspections of machine tool electrical system accessories - two-way right-angle flange pipe joints (hereinafter referred to as pipe joints). This standard applies to two-way right-angle flange pipe joints for connecting steel pipes or pipe joints for cables and wires in machine tool electrical systems. It can also be used as a reference for electrical systems of other machines. JB/T 8774.9-1998 Machine Tool Electrical System Accessories Two-Way Right-Angle Flange Pipe Joints JB/T8774.9-1998 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/F8774.1--8774.15—1998
Machine Tool Electrical System Accessories
1998-07-17 Issued
State Machinery Industry Bureau
1998-12-01 Implementation
JB/T$774.9
Designed on the basis of many years of experience in producing machine tool electrical system accessories two-way right-angle flange pipe joints, this standard is formulated in accordance with the relevant ideas and technical conditions of the first section of this standard. The implementation plan of this standard is proposed by the National Machine Tool Standardization Technical Committee. The standard is under the jurisdiction of Beijing Machine Tool Research Institute of the Ministry of Machinery Industry, and the drafting units of this standard are Beijing Mining Research Institute of the Ministry of Machinery Industry, Tianjin Machine Tool Connection Factory, Changzhou Wujin Kai Tool Electric Appliance, Beijing No. 1 Machine Tool Factory, and Beijing No. 2 Machine Tool Factory. 1
Machinery Industry Standard of the People's Republic of China
Machine Tool Electrical System Accessories
Two-way Right-angle Flange Pipe Joint
JB/T8774.9-1998
This standard specifies the main cost element standard of the system ball parts, one-way French joint and F micro-motion pipe joint, technical requirements, trial and inspection, etc.
This standard specifies the two-way right-angle flange joint for connecting the electrical system and the wire and pipe of the machine tool electrical system: other gas systems can be used as a reference.
2 Referenced Standards
The provisions contained in the following standards are quoted in this standard and are included in the standard. The versions indicated are effective at the time of issuance of this standard. All standards will be revised accordingly. The parties who issue the standards shall use the latest versions of the following standards if possible. Note 5
|0197-81
CB 10: 88
GB7307-87www.bzxz.net
:D913R--38
End thread tolerance and fit (diameter 1-5m)
Carbon structural parts
Seven screw sealing threads
Professional metal casting technical plan parts
Segment casting support
GB/T5226.11996 Industrial board electrical equipment: Part: Technical requirements for use HTB 834:85
3 Structure
Technical requirements for tropical standard transformers
Special report structure example: 1.
1 Main dimensions
See Figure 2 and Table 1
Approved by the Industrial Bureau of Taiwan in 1717
199812-01
Head and body screw thread size
M32×2
M33×3
Mi2×2
m4a×2
JB/ 8774.9-1998
The industry marks the name of the pipe joint according to the head body specification and standard number: the joint body specification d=M1×1.5 is marked as +
Tube head M16×1. 5JH/T 8771. 9-1998 joint frequency standard dG% of the reputation of the joint marking example: consult CJB/7749-1
6 Technical requirements
! The material of the joint is allowed to be eluted, and it can be iron or other metal shops with sufficient strength. 58
6.2 The material of the poor compensation system is structural steel
JB/T8774.9
6.3 The full standard should be clear GB9-38. 64 The lead grounding should meet the requirements of 0
See the requirements of the carbon structure GB700 6.6 According to the head body, the thread should meet the requirements of the 6H grade specified in the notice B: for the pipe frequency effect, the current standard of the joint is CB77. The outlet end of the pipe joint should have a state-owned or reversed case, 6.7
6.8 The inner surface of the pipe joint should be smooth, and the wires and cables should not be damaged. The long skin will not be embedded. 6.
The pipe joint should be coated with anti-rust or take anti-rust tape as required: If the user requires the pipe joint to be heat-resistant and flexible (group ordering, its products meet the B requirements, and the name of the manufacturer or the simple bed screw specification should be indicated on the pipe joint as much as possible. Test the pipe joint material, size (separately picked) and processing history. The quality should all comply with the current provisions of Chapter 6. 2 The grounding test seat test camp joint connection diagram is used, and the requirements of B\5225.1 are as follows:
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