Notes

basic introduction<br>
Hydraulic pipes, simn are provided individually since of the five significant components (carbon C, silicon Si, manganese Mn, phosphorus P, sulfur S).

1. Smooth steel pipe for fluid: GB8163-99

2. Smooth steel pipe for boiler: GB3087-1999

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

4. High-pressure seamless steel pipelines for fertilizer devices: GB6479-1999.

5. Smooth steel pipe for geological exploration: YB235-70.

6. Seamless steel pipeline for oil drilling: YB528-65.

7. Seamless steel pipeline for petroleum cracking: GB9948-88.

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

9. Smooth steel pipeline for automobile fifty percent shaft: GB3088-1999.

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

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

Various alloy pipes 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMov, 20G, 40Cr, 12Cr1MoV, 15CrMo steel pipes are split into smooth steel pipelines as well as bonded steel pipelines according to various production processes. Smooth steel pipelines are smooth steel pipes made from steel ingots, pipeline billets or steel poles perforated.

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

Benefits of hydraulic.

Compared to mechanical transmission as well as electric transmission, hydraulic transmission has the following benefits:.

1. Various elements of hydraulic transmission can be comfortably as well as flexibly arranged according to requirements.

2. http://www.liujin-fittings.com/High-Quality-factory-directly-types-of-hydraulic-fittings-pd45956763.html , little dimension, little motion inertia as well as rapid reaction rate.

3. reusable hydraulic hose fitting and also control, which can realize stepless speed law in a wide variety (speed policy variety as much as 2000:1).

4. The overload defense can be realized instantly.

5. Typically, mineral oil is utilized as the functioning medium, the family member relocating surface area can be oiled by itself, and also the solution life is long;.

6. It is easy to understand straight movement/.

7. It is very easy to understand the automation of the equipment. When the electro-hydraulic mixed control is taken on, not just a greater degree of automatic control procedure can be recognized, but likewise push-button control can be understood.

Downsides of hydraulics.

1. Due to the big fluid circulation resistance as well as leakage, the effectiveness is low. Otherwise dealt with effectively, the leakage will not just pollute the site, however might also create fire as well as surge mishaps.

2. As the functioning performance is conveniently impacted by temperature modifications, it is not appropriate to work under very high or very low temperature conditions.

3. The manufacturing accuracy of hydraulic components is high, so the cost is extra pricey.

4. Due to the leakage as well as compressibility of the liquid tool, a stringent transmission ratio can not be acquired.

5. It is not very easy to discover the cause when the hydraulic transmission stops working; the usage and also maintenance need a greater technical degree.

Connector setup.

The hose should not be exceedingly bent when it is moving or at rest, nor can it be curved at the root, however must start to bend a minimum of 1.5 times its diameter;.

When the hose is relocated to a severe position, it must not be drawn also firmly, it should hang;.

Try to prevent torsional contortion of the hose;.

Keep the pipe as away as possible from the warm emitting elements, and also it is required to install a warmth guard;.

Prevent outside damages to the pipe, such as long-lasting friction on the surface area of the same element throughout usage;.

If the hose's very own weight causes excessive contortion, there ought to be support parts.

Pipe installment.

Before installation, all steel pipelines can be marinaded first, especially the steel pipes linked to the ferrule type pipe joints must be marinaded initially, and afterwards the ferrule is secured to the pipe end beforehand;.

All pipe joints should be cleaned up with kerosene before installation, the O-rings inside should be temporarily gotten rid of for storage space, and afterwards place on after the formal installment;.

Throughout building, maintain the oil ports, pipeline joints, pipe ends as well as various other openings of pumps, suppliers and other devices tidy, as well as do not allow foreign items such as water and also dirt to get in;.

The pipeline will be laid in a totally free state, and the welded pipeline shall not be forcibly repaired and connected by using extreme radial force;.

The oil opening of the bearing seat need to be examined in advancement to see if the interior oil circuit is unblocked as well as if the oil port string matches the joint.

Pipe cleaning.

In order to ensure the tidiness of the lubrication system as well as supply the bearings of mechanical devices with tidy oil, the pre-installed pipes should be gotten rid of and also cleaned up. There are two sorts of cleaning: kerosene cleansing as well as pickling.

( 1) Items and also methods of kerosene cleansing.

Item. Copper pipelines, stainless-steel pipelines;.

method. 1. The steel pipelines that have been marinaded before pre-installation, as well as the inner wall surface is devoid of rust as well as iron scale; 2. The pipe joints that were soiled throughout the pre-installation; 3. Get rid of the pipes as well as joints that need to be cleaned up, and also utilize cloth (( It is needed not to drop woollen). Clean the within the tube with kerosene, soak both ends and also joints in kerosene to clean, after that coat the within of the tube with engine oil or loaded with grease, and also seal both ends for setup; 4. After cleaning, there must be no visible contaminants. (Such as iron filings, coarse impurities, welding slag, etc), pay special focus to the welding slag on the inner wall of the weld should be extensively cleansed.

( 2) Marinading items as well as methods.

Object. Steel pipes that have actually not been pickled prior to pre-installation; steel pipes that have actually been pickled however are now seriously corroded.

technique. 1. Use a degreasing representative to eliminate the oil sticking to the pipeline; 2. Usage tidy water to remove the dust on the pipeline; 3. Eliminate the rust places on the pipe wall, rolled iron filings, etc in the pickling option; 4. Rinse with tidy water For the accessories generated in the above procedures, the within the pipe need to be cleaned with high-pressure water; 5. Neutralize the acid service remaining on the pipe with lye; 6. In order to efficiently dry out the pipeline, the pipeline ought to be immersed in warm water or vapor dried out. Make the pipes completely dry; 7. Inspect the pickled pipelines to see if they are clean; 8. Seal the opening of the pipeline with plastic or plastic tape right away after pickling to stop international matter as well as dampness from intruding [1]



The steel pipes that have actually been pickled prior to pre-installation, as well as the inner wall is totally free of corrosion as well as iron range; 2. Remove the pipelines as well as joints that need to be cleaned, and utilize towel (( It is required not to lose woollen). Usage clean water to get rid of the dirt on the pipe; 3. Wash with clean water For the attachments created in the above operations, the inside of the pipe should be washed with high-pressure water; 5. In order to effectively dry out the pipe, the pipeline should be submersed in warm water or heavy steam dried out.
Homepage: http://www.liujin-fittings.com/High-Quality-factory-directly-types-of-hydraulic-fittings-pd45956763.html