JB/T 9191-1999 JB/T 9191-1999 Technical requirements for plasma spray welding guns JB/T9191-1999 Standard download decompression password: www.bzxz.net

IS 25.224.70
Machinery Industry Standard of the People's Republic of China
IB/T 9141—1999
Specification for plasma surfacing gun1999-06-28 Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
.IB.T9191-1999
This standard is a revision of ZBJ64014-89 Specification for High-end Welding Guns. During the revision, the original standard was revised, but the main technical content remained unchanged. This standard will replace ZBJ64014-B9 from the date of implementation. This standard was proposed and approved by the National Technical Committee for Standardization of Metal and Non-metal Coverings. This standard was drafted by: Shihan Material Protection Research Institute. The main drafters of this standard are: Qia Zubao, Li Jian, Tong Jianyang. 1 Scope
Machinery Industry Standard of the People's Republic of China
Technical Conditions for Plasma Spraying Guns
Sprcificution fur plasma surlacing gun0
2J64014-H9
This standard specifies the model, name of parts, technical requirements, test methods and specifications of plasma spraying guns. This standard is applicable to powder plasma welding guns, which are used for the pressure of molten powder inside and outside the parts. 2 Model, structure name
1. The model and structure of plasma spraying guns indicate their maximum transfer flow, delivery method, etc. The following parts are listed in the following sections: (1) The serial number of plasma spraying guns:
The serial number of plasma spraying guns! The manufacturer defines: e) The maximum transfer current is 400A, the variable training number, d) The type code of plasma spray welding inspection, N represents deep hole or internal network plasma spray welding, and the code of the powder feeding method of high-yield spray welding guns such as
, the code of the powder feeding method of the research and development indicates the external powder feeding method, and the code of the internal feeding method is omitted. Example 1 QLA-400NW represents the maximum transfer arc working current of 400A, the exploration hole or internal reading method, the plasma spray gun with good powder feeding method, and the product series number is defined as A. Example 2 QLB-6UU represents the maximum transfer arc working current of 600A, flat or The series of plasma spray welding guns with external cylindrical and internal delivery structure are designated by the manufacturer as B
22. The structure and components of plasma spray welding guns are uniformly named as shown in Table 1 and Figure 1. Table of unified naming of the structure and components of plasma spray welding guns. Serial number
Next Le Institute
National Machinery Industry Register 1999-06-28 Approved 5
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Core joint
2000-01-01 Implementation
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GR/T 1452-1-19B
0 Shape close pair drawing
GR/T345Z1-1982
G/T $452.1—1P82
3 Technical requirements
Shape seal drawing
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The parts of the spray gun should be interchangeable. The spray gun must be selected from M12×1 and M16×1. The oxygen consumption index is as shown in Table 2. The upper and lower glands and adjustable parts must be rolled or adjusted. Table 2 Xenon consumption index
The allowed current of the shift is 4
The gas consumption limit
Selected powder gas
Inner powder delivery
Total powder
Ion gas
3.1 The appearance of the spray gun should be beautiful and neat. The welding parts should be evenly distributed without obvious mechanical defects and surface defects. SD0
3.2 At the water and electricity joint of the cold water sprayer, when the water shows 0.4MPa, the force test of 4.[.2 shall not show any bacteria phenomenon,
3.3 The coaxiality error between the cathode head and the spray hole shall not be more than 0.3mm: 3.4 When the gas cylinder is low! The K meter indication (the inner diameter of the long pipe is not less than 6mm: the length is not more than 5m) is greater than or equal to 0.15MPa. 2
JB/T9191-1999
The arc starting and the specified electric strength are also shown in Table 3. The arc length of the arc starting shall not exceed 5mm. 3. The arc starting and the arc product electrocardiogram of the plasma spray welding product are large. 1. The current
arc starting volume electrocardiogram
The most important current
3.5 The spraying gas pressure is 32, the working gas flow rate is less than the requirements of the "urgent gas elimination index" in Table 2, and the rated working current range is 80-+180℃. It is required that there will be no flame penetration within 1 hour, no full depth of white, and no obvious head penetration:
3. The full melting rate of the spraying is as shown in Table 4. Table 4 Spray welding 3.7 Self-fluxing alloy powder test loss -8 -180 months, the internal welding efficiency shall not be less than 95%, the external plasma welding efficiency shall not be less than 5% 3. The water pressure at the water-electric joint shall be less than 0.2MPa, and the inlet water temperature shall not be less than 30C: spray The gun is allowed to work within 10m, and the temperature difference between the cold water inlet and outlet shall not exceed 30°C. 3.9 Before spray welding, all parts must be degreased. After assembly, the current resistance between the anodes should be greater than 5M2 (measured with a meter).
4 Test method acceptance rules
4.1 Test method
4.1.1 Appearance quality inspection see Table 5,
4, 1. 2 Watertightness test
When the water pressure at the water-electric joint is 0.4M, water shall be discharged, and there shall be no leakage within 10m. 4.1.3 The anode head and the nozzle inlet shall be simultaneously sprayed. The high-frequency sparks shall be observed with a reflector in the ion gas seal, and the distribution on the cross section of the duct shall be less than 3/5. 4.1. Ignition and arc performance inspection
The sparks shall be continuously started three times, and the sparking speed of the whole arc shall comply with the provisions of Table 3. 4.1.5 Allowable deposition rate inspection
After the spray source gun is sprayed, the maximum transfer arc working current shall be Under the following conditions, according to the allowable rate specified in Table 4, the maximum powder quantity allowed shall be fed to the welder or the welder for 15 m without clogging or dripping. 4.1.6 Inspection of deposition efficiency After welding, the maximum amount of powder allowed shall be fed and formed on the weighed specimen for 3 m, then the light layer shall be reground, 100% deposition efficiency = powder feeding quality machine basis and design removal or chemical treatment JE/T9191—1999 t||Table 3 External quality requirements Inspection method
1 Main parts 1 and the production in the process
Comparison of machine plate deduction and collision
Additional use 5 The formed objects
Changed flash
The surface of the parts after treatment
Each electrode tube, 1. Make gas and grab oil
Connect with the curve stopper, drop degree
4.1. Check the inlet and outlet temperature of cooling water
Additional addition 1
All surfaces and spray||t The pressure seam hole is placed inside the component surface, the positive plate sends the gas ion core, the indicator is not clear, the surface is not allowed to be bright, and there is no tax spot, but there must be a time drop. After the spray welding is allowed to continue working for 10 minutes at the maximum working current allowed, directly measure the water temperature at the inlet and outlet of the cooling water. 4.2 Acceptance regulations 4.2. The product must be accompanied by a product certificate and instruction manual. 4.2.2 The appearance, water tightness test, axiality and arc striking performance shall be checked item by item. 4.2.3 The user has the right to inspect the delivered products according to the test methods and acceptance regulations specified in the technical standards. 5. Labels and packaging
The product shall be marked with: the name and trademark of the previous manufacturer, model, year of manufacture, and the signs of the cathode, anode, powder gas and ion gas inlet
5.2. For supplies, use plastic tape and trays for inner packaging and wooden boxes or cardboard boxes for outer packaging, and indicate the product name, model, volume, year, month and name, and the font should be correct.
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