Notes

fundamental intro<br>
Hydraulic pipes, simn are provided individually due to the five significant components (carbon C, silicon Si, manganese Mn, phosphorus P, sulfur S).

1. Smooth steel pipeline for liquid: GB8163-99

2. Smooth steel pipeline for boiler: GB3087-1999

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

4. High-pressure seamless steel pipes for fertilizer tools: GB6479-1999.

5. Seamless steel pipe for geological drilling: YB235-70.

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

7. Smooth steel pipeline for oil fracturing: GB9948-88.

8. Unique smooth pipeline for oil drill collar: YB691-70.

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

10. Seamless steel pipeline for ships: GB5312-1999.

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

Numerous alloy pipes 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMov, 20G, 40Cr, 12Cr1MoV, 15CrMo steel pipelines are split right into smooth steel pipelines and welded steel pipes according to different production procedures. Smooth steel pipelines are seamless steel pipes made from steel ingots, pipe billets or steel rods perforated.


Hydraulic pipeline weight formula: [( external diameter-wall density) * wall thickness) * 0.02466= kg/m (weight per meter).

Advantages of hydraulic.

Compared to mechanical transmission as well as electrical transmission, hydraulic transmission has the complying with advantages:.

1. Different elements of hydraulic transmission can be conveniently and also flexibly arranged according to demands.

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

3. Convenient operation and also control, which can understand stepless speed regulation in a wide variety (rate policy range up to 2000:1).

4. The overload defense can be recognized automatically.

5. Generally, mineral oil is utilized as the functioning medium, the loved one moving surface area can be lubed on its own, and also the solution life is long;.

6. It is very easy to understand direct movement/.

7. It is simple to understand the automation of the maker. When the electro-hydraulic combined control is adopted, not just a higher degree of automated control procedure can be realized, however also remote can be realized.

Downsides of hydraulics.

1. Due to the big fluid flow resistance and also leakage, the efficiency is low. If not dealt with properly, the leakage will certainly not only pollute the website, but might likewise trigger fire as well as explosion accidents.

2. As the functioning efficiency is conveniently impacted by temperature level changes, it is not suitable to function under extremely reduced or extremely high temperature conditions.

3. The manufacturing precision of hydraulic components is high, so the cost is extra costly.

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

5. When the hydraulic transmission fails; the use and upkeep need a greater technical level, it is not very easy to find out the cause.

Adapter installation.

The hose pipe needs to not be exceedingly curved when it is moving or at remainder, nor can it be curved at the origin, however should begin to flex a minimum of 1.5 times its size;.

When the hose is relocated to a severe placement, it should not be pulled too snugly, it should be loose;.

Attempt to prevent torsional deformation of the hose;.

Maintain the hose pipe as far away as feasible from the heat emitting parts, as well as it is needed to set up a thermal barrier;.

Avoid external damage to the hose, such as long-term rubbing externally of the very same part during use;.

If the hose's very own weight creates too much contortion, there should be support components.

Pipe setup.

Before installation, all steel pipes can be pickled initially, especially the steel pipes connected to the ferrule type pipe joints need to be pickled first, and after that the ferrule is fastened to the pipeline end in advancement;.

All pipeline joints need to be cleansed with kerosene before setup, the O-rings inside ought to be briefly gotten rid of for storage space, and afterwards put on after the official setup;.

Throughout construction, keep the oil ports, pipe joints, pipe ends as well as other openings of pumps, distributors and various other devices clean, and also do not allow foreign things such as water as well as dust to enter;.

The pipeline will be laid in a complimentary state, and also the bonded pipeline will not be by force fixed as well as linked by applying too much radial force;.

The oil opening of the bearing seat must be checked in breakthrough to see if the interior oil circuit is unblocked as well as if the oil port string matches the joint.

Pipeline cleaning.

In order to ensure the sanitation of the lubrication system as well as supply the bearings of mechanical equipment with tidy oil, the pre-installed pipelines must be removed and also cleaned. There are 2 sorts of cleaning: kerosene cleaning as well as pickling.

( 1) Things and also methods of kerosene cleansing.

Item. Copper pipelines, stainless steel pipelines;.

method. 1. The steel pipes that have actually been marinaded prior to pre-installation, and also the internal wall surface is cost-free of rust and also iron scale; 2. The pipe joints that were stained throughout the pre-installation; 3. Remove the pipes as well as joints that require to be cleaned up, as well as use towel (( It is essential not to shed woollen). Clean the within of the tube with kerosene, soak both ends and also joints in kerosene to clean, then layer the within television with engine oil or loaded with grease, and also seal both ends for installment; 4. After cleansing, there need to be no noticeable pollutants. ( water line faucet hose female fitting supply hoses as iron filings, coarse impurities, welding slag, and so on), pay special attention to the welding slag on the inner wall surface of the weld have to be extensively cleaned up.

( 2) Marinading approaches as well as objects.

Things. Steel pipelines that have actually not been marinaded before pre-installation; steel pipes that have been pickled yet are currently severely rusted.

approach. 1. Utilize a degreasing representative to get rid of the oil adhering to the pipeline; 2. Usage tidy water to eliminate the dust on the pipe; 3. Get rid of the corrosion areas on the pipe wall surface, rolled iron filings, etc in the pickling service; 4. Wash with tidy water For the add-ons created in the above procedures, the within of the pipeline ought to be cleaned with high-pressure water; 5. Neutralize the acid remedy staying on the pipe with lye; 6. In order to properly dry out the pipe, the pipeline must be immersed in hot water or vapor dried out. Make the pipelines dry; 7. Examine the pickled pipes to see if they are tidy; 8. Seal the opening of the pipe with plastic or plastic tape instantly after marinading to avoid international issue and also wetness from intruding [1]



The steel pipes that have been marinaded before pre-installation, and the internal wall surface is totally free of corrosion and also iron scale; 2. Eliminate the pipes as well as joints that require to be cleansed, and also make use of towel (( It is essential not to shed wool). Usage clean water to get rid of the dust on the pipeline; 3. Rinse with clean water For the attachments produced in the above procedures, the inside of the pipeline must be washed with high-pressure water; 5. In order to properly dry out the pipeline, the pipeline must be submersed in hot water or heavy steam dried out.

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