The tap grinder is already a very specialized device, but there is a comprehensive consideration when choosing. Xiao Bian summarizes the following several purchase considerations:
1, the size of the tap to be processed. The taps are divided into three categories: small and medium-sized, M12 and M12-M50 are medium-sized, and M50 and above are large taps. Each manufacturer develops machine tools for different ranges. The small tap grinding machine has a small volume and high efficiency, and the medium-sized tap grinding machine has to ensure the strength and efficiency of the machine tool. For large taps, because of the low output, it is generally possible to use a universal thread mill. In addition, the national standard does not even require the shovel for the tap below M6, but to get a good tap, the tap of the M1 must be shovel.
2, the type of tap. Straight groove taps All taps are fine. To machine spiral groove taps, taper taps, extrusion taps, left-hand taps and other types, choose the right model. If the tap shape is complex, such as a round dome, a trapezoid, etc., a two-dimensional numerical control dresser is used.
3. Production efficiency and precision. The efficiency of the multi-line tap grinding machine is 2-3 times that of the single-line tap grinding machine, but the precision of the single-line diamond pen trimming is better than that of the multi-line steel roller. The diamond multi-wire roller is the most ideal, and the cutting type is stable and efficient, but the price is not thin. To improve the accuracy, a closed-loop system can be used, and the pitch and the cutting accuracy of the tap can be increased by one step. So it is also important to choose open loop or closed loop.
4. Matching of production. Multi-line tap grinding machines require a threaded-grinding steel roller or a SB725F single-wire grinding roller. If non-standard processing, or small batch multi-standard production, it is recommended to adjust the convenient CNC tap grinding.
We can produce lots of Alloy Steel Pipe that used on the Petrochemical and Refinery project, such as the P11 Steel Pipe ,P12 steel pipe ,P22 steel pipe ,P91 steel pipe,P92 steel pipe ,P5 steel pipe, P9 steel pipe and P36 steel pipe.From 2013 to 2015 year, we awarded the world`s largest P91 order from Reliance (single PO 8,000 tons P91), the final additional quantity together is up to 16,000 tons, Plus CS 11000 tons. Entire projects P grades are from Yangzhou Chengde. Our main reference list on the Petrochemical and Refinery projects as following:
| EPC | Owner | Project name | Location | Project introduction | Material | Size range(mm) | Qty(MT) |
| Flour/Technip | Sasol | Lake Charles Chemical complex | Lousiana USA | Sasol's Lake Charles Chemical Complex is a world-scale petrochemical complex The $8.9 billion project will roughly triple the company's chemical production capacity in the U.S. and enable it to build on its strong positions in robust and growing chemicals markets. | GR6/P22/P91 | 114~609*14.27~46.99 | 600 |
| Flour/Bechtel | Reliance | Jamnagar Refining And Petrochemical Complex | Gujarat India | The Jamnagar complex comprises of a petroleum refinery and associated petrochemical plants. The refinery is equipped to refine various types of crude oil (sour crude, sweet crude or a mixture of both) and manufactures various grades of fuel from motor gasoline to Aviation Turbine Fuel (ATF). The petrochemicals plants produces plastics and fibre intermediates. | A106B/P11/P5/P9/P91 | 21.3~1066.8*4.78~60.33 | 25,370 |
Oil Pipe,Refinery Pipe,Astm A519 Pipe,Fuel Refinery Pipe
YANGZHOU CHENGDE STEEL PIPE CO.,LTD , https://www.chengdepipe.com