Notes

standard intro<br>
Hydraulic pipelines, simn are detailed independently since of the 5 major components (carbon C, silicon Si, manganese Mn, phosphorus P, sulfur S).

1. Smooth steel pipeline for fluid: GB8163-99

2. Smooth steel pipe for boiler: GB3087-1999

3. High pressure smooth pipeline for boiler: GB5310-95 (ST45.8- kind).

4. High-pressure smooth steel pipelines for plant food tools: GB6479-1999.

5. Smooth steel pipeline for geological drilling: YB235-70.

6. Smooth steel pipeline for oil exploration: YB528-65.

7. Seamless steel pipe for oil splitting: GB9948-88.

8. Special seamless pipeline for oil drill collar: YB691-70.

9. Smooth steel pipe for vehicle half shaft: GB3088-1999.

10. Smooth steel pipe for ships: GB5312-1999.

11. Cold-drawn cold-rolled precision seamless steel pipeline: GB3639-1999.

Different alloy pipes 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMov, 20G, 40Cr, 12Cr1MoV, 15CrMo steel pipes are divided right into smooth steel pipelines as well as welded steel pipes according to various production processes. Seamless steel pipelines are smooth steel pipes made from steel ingots, pipe billets or steel rods perforated.

Hydraulic pipe weight formula: [( outer diameter-wall density) * wall surface density) * 0.02466= kg/m (weight per meter).

Benefits of hydraulic.

Compared with mechanical transmission and electric transmission, hydraulic transmission has the complying with benefits:.

1. Numerous components of hydraulic transmission can be comfortably as well as flexibly set up according to needs.

2. Light weight, small size, little movement inertia and also quick reaction rate.

3. Convenient procedure and also control, which can recognize stepless speed policy in a broad range (rate guideline array approximately 2000:1).

4. The overload defense can be understood instantly.

5. Generally, mineral oil is made use of as the working medium, the relative moving surface area can be lubricated by itself, and the solution life is long;.

6. It is very easy to recognize direct motion/.

7. It is very easy to recognize the automation of the equipment. When the electro-hydraulic combined control is taken on, not just a greater degree of automated control process can be recognized, yet also remote control can be understood.

Disadvantages of hydraulics.

1. Because of the big liquid flow resistance and leak, the efficiency is reduced. Otherwise taken care of correctly, the leakage will not only pollute the website, yet may also cause fire as well as surge mishaps.

2. As the working performance is easily influenced by temperature level adjustments, it is not suitable to function under very high or very reduced temperature level problems.

3. The manufacturing accuracy of hydraulic elements is high, so the cost is a lot more costly.

4. As a result of the leak and also compressibility of the liquid medium, a rigorous transmission ratio can not be gotten.

5. http://www.liujin-fittings.com/Hydraulic-pipe-fitting-factory-direct-supply-one-piece-hydraulic-hose-fitting-pd41785763.html is challenging to discover the cause when the hydraulic transmission stops working; the use as well as maintenance call for a greater technical degree.

Adapter installment.

The pipe must not be excessively bent when it is moving or at remainder, nor can it be curved at the root, but must start to flex at the very least 1.5 times its size;.

When the hose pipe is relocated to an extreme setting, it should not be drawn as well snugly, it should be loosened;.

Attempt to prevent torsional contortion of the hose;.

Keep the tube as away as possible from the heat radiating parts, and it is necessary to set up a heat guard;.

Prevent external damages to the hose, such as lasting rubbing externally of the very same component throughout usage;.

If the hose's very own weight creates excessive deformation, there should be support parts.

Pipe installation.

Prior to setup, all steel pipelines can be pickled first, especially the steel pipes connected to the ferrule kind pipe joints need to be pickled first, and after that the ferrule is fastened to the pipeline end in advance;.


All pipe joints need to be cleansed with kerosene prior to setup, the O-rings inside ought to be momentarily gotten rid of for storage, as well as after that place on after the formal installment;.

During building and construction, maintain the oil ports, pipe joints, pipeline ends and also various other openings of pumps, distributors and also other equipment clean, as well as do not permit foreign objects such as water and dirt to get in;.

The pipeline will be laid in a cost-free state, as well as the bonded pipe shall not be by force dealt with and linked by using extreme radial force;.

The oil opening of the bearing seat must be signed in advancement to see if the internal oil circuit is unblocked and also if the oil port thread matches the joint.

Pipe cleansing.

In order to make certain the tidiness of the lubrication system as well as supply the bearings of mechanical devices with tidy oil, the pre-installed pipes have to be removed and cleaned up. There are 2 types of cleansing: kerosene cleaning and pickling.

( 1) Things as well as methods of kerosene cleansing.

Things. Copper pipes, stainless-steel pipelines;.

approach. 1. The steel pipelines that have actually been pickled prior to pre-installation, as well as the inner wall is cost-free of rust and iron range; 2. The pipeline joints that were stained throughout the pre-installation; 3. Get rid of the pipelines and also joints that require to be cleaned, and also use fabric (( It is necessary not to drop woollen). Wipe the inside of the tube with kerosene, saturate both ends as well as joints in kerosene to tidy, then layer the within of television with engine oil or full of oil, and also seal both finishes for installment; 4. After cleaning, there must be no noticeable impurities. (Such as iron filings, coarse pollutants, welding slag, and so on), pay unique attention to the welding slag on the inner wall surface of the weld have to be thoroughly cleaned.

( 2) Pickling techniques and things.

Object. LIUJIN hydraulic hose fitting that have actually not been marinaded prior to pre-installation; steel pipelines that have actually been marinaded but are currently drastically worn away.

Use tidy water to get rid of the dirt on the pipeline; 3. Rinse with clean water For the add-ons generated in the above procedures, the within of the pipe ought to be washed with high-pressure water; 5. In order to successfully dry the pipe, the pipe ought to be submersed in warm water or heavy steam dried out.



The steel pipes that have actually been marinaded prior to pre-installation, and the internal wall surface is totally free of corrosion and iron range; 2. Eliminate the pipes and also joints that need to be cleaned, and make use of cloth (( It is essential not to lose woollen). Usage tidy water to eliminate the dust on the pipeline; 3. Wash with tidy water For the attachments produced in the above operations, the inside of the pipeline must be washed with high-pressure water; 5. In order to efficiently dry out the pipe, the pipeline must be immersed in warm water or vapor dried.

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