Ceramic double-layer wear-resistant concrete pump pipe
The construction of the ceramic outsourcing elbow is very simple, sub-management and outsourcing. The choice of the supervisor is the diameter of the pipeline installed on site. The internal selection of the external storage is 10-15mm larger than the outer diameter of the main pipe. According to the situation of the site, it is cut into the required length and the curved rear hoop porcelain. After the hoop porcelain on the outer tube, use The tung oil gel produced by our factory is pasted onto the main pipe. If the pipe vibration is large, the spot welding is strengthened by four points (one point on one side), and the ceramic outsourcing elbow is made.
|contents||arguments and statements||remarks|
|1||weight||1,Take bend no.125bB-r275-90 as example:weight is 14.8kg,weight of single-layer high manganese steel bend is 16.7kg, weight of double-layer high-chromium iron bend taking inside and outside as a whole is 20kg,weigt of Talent bend decreases at least 15%. |
2,reason of weight decrease:compared wth single-layer high manganese steel bend,inner layer of Talent bend use combination of high-chromium and wear-resisting alloy steel,abrasive resistance is high while thickness is thinner than single-layer bend;compared with double-layer high-chromium iron bend,Talent bend has no packing layer,inner and outer layer fitted tightly.
|2||Material and wall thickness||outer layer :Q345B,wall thickness is 3.5mm;|
inner layer:(upper part)high-chromium iron Cr29,18mm\(lower part)alloy steel GCr15,6.5mm
|3||volume||convention concrete C25\30,60,000m³|
|4||pressure-resisting test||adopt method of hydraulic test:|
(1)sealing reliability test
a rising pressure to 5MPa,maintaining pressure for 3 minutes,no leaking;
b rising pressure to 10MPa,maintaining pressure for 3 minutes,no leaking;
c rising pressure to 17MPa,maintaining pressure for 3 minutes,no leaking;
(2)extreme pressure-resisting test:extreme breakdown pressure ≥17MPa
|5||hardness||(upper part)high-chromium iron Cr29:hardness is HRC63–65; |
(lower part)alloy steel GCr15:hardness is HRC62–65;
|6||technological process automation||1,one compression mouldig forming production line,self-heating,mold shaping,continuous trimming|
2,two heat treatmet production lines:computer control of each warm areas such as heating,heat preservation,refrigeration,output quantity is 10 pieces per minutes
3,10 welding production lines,automation of welding,except clamping and placement by manual work,other process all do automatically,welding quality is stable and appearance is beautiful
4,one painting production line,adopt technological processes such as automatic blasting,automatic powder spraying ,automatic baking and so on,surface is shiny .
The construction of ceramic elbow is very convenient. According to the size of the elbow installed on the site and the diameter of the elbow, a short section of one-half of the outer arc is made. Four solder joints are reserved on the short section, and the porcelain is hooped to the scene. Paste on the elbow and weld four points to reinforce. This creates a strong ceramic wear layer on the outside of the elbow, which greatly extends the life of the elbow. In the elbow, only one-half of the outer arc is needed, which reduces the amount of ceramics and lowers the price. Advantages of ceramic outsourcing elbows:
1. Solved the problem that the porcelain cannot be attached during operation.
2, completely solved the problem of porcelain removal of bonded ceramic sheets.
3. Construction is simple and convenient.
4. Longer service life.
5, in the high temperature resistance with the hoop ceramic effect is more obvious.
The biggest feature of the ceramic elbow is that it completely solves the problem of elbows that cannot be worn out during operation, and provides a practical anti-wear construction method for the use unit, ensuring long-term safe and civilized operation.