PLC Program Controlling Petrochemical Industry Nailing Head Carbon Steel Tube
1.Introduction:
PLC Program Controlling Petrochemical Industry Nailing Head Carbon Steel Tube |
| Application | Power plant boilers, heating boilers, fin economizers of industrial boilers, heat pipe air preheaters, waste-temperature boilers, and steel, petrochemical, chemical and various industrial boilers |
| Material of base pipe | Carbon, alloy steel, Stainless Steel Tube
ASTM A106/A53,ASTM/ASME SA210,ASTM A213,ASTM A179/A192 |
| Material of fins | Aluminium or copper |
| Type of base pipe | Seamlesss,Welded |
| Shape of finned tube | Spiral |
| OD of Base pipes | 25mm-168 mm |
| WT of base pipes | 1-10 mm |
| Height of fins | 8mm-20mm |
| WT of fins | 0.8mm-5mm |
| Pitch of fins | 2.0mm-20mm |
| Length of blank area | According to Customer's request. |
Material: carbon steel, alloy
Bare tube size: O.D. 38mm-219mm
Stud size: O.D. 6mm-25.4mm
Application and processing requirements of nailing head tube
一,ApplicationThe heat transfer coefficient of the flue gas side can be improved by using the nil-head tube in the convection chamber of the heating furnace in petrochemical industry. The area of the nil-head tube is 2 ~ 3 times that of the light tube. The same heat intensity can be obtained by using the nil-head tube under the condition of reasonable design
二,Manufacturing.
The welding process is controlled by PLC program. The feeding motor and indexing are brake motor. The man-machine interface can set the number of nail heads, indexing parameters and compensation coefficient
三, technical characteristics1, nail head specifications can be adjusted according to user needs;2. The height of the welding flesh bulge at the root of the welding nail head is about 1mm (to meet the requirements of nodular welding);3, high welding efficiency, can weld 30 nail heads per minute;4. Welding power is 160kVA; The power grid voltage is single-phase 380V.Market and economic benefit forecastNailhead tube is the main component of chemical equipment and heat exchange equipment. The production of the above equipment or equipment maintenance need to nail head pipe. Nodule - free welding is an advanced and stable technology in nay-head pipe manufacturing, which has a good prospect of effective use.
6. QUALITY CONTROL:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking.
6. QUALITY CONTROL:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking.
QUALITY CONTROL:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking.
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.
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