Notes

basic introduction<br>
Hydraulic pipelines, simn are provided independently due to the five significant components (carbon C, silicon Si, manganese Mn, phosphorus P, sulfur S).

1. Seamless steel pipe for liquid: GB8163-99

2. Seamless steel pipe for boiler: GB3087-1999

3. High stress seamless pipe for boiler: GB5310-95 (ST45.8- type).

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

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

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

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

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

9. Seamless steel pipe for vehicle fifty percent shaft: GB3088-1999.

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

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

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

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

Benefits of hydraulic.

Contrasted with mechanical transmission and also electrical transmission, hydraulic transmission has the following benefits:.

1. Different components of hydraulic transmission can be comfortably and also flexibly prepared according to needs.

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

3. Hassle-free procedure as well as control, which can recognize stepless rate guideline in a large range (speed law variety up to 2000:1).

4. The overload defense can be realized immediately.

5. Normally, mineral oil is made use of as the working tool, the relative moving surface can be lubed on its own, as well as the solution life is long;.

6. It is easy to realize linear motion/.

7. It is very easy to recognize the automation of the maker. When the electro-hydraulic combined control is taken on, not only a greater level of automated control process can be realized, but additionally remote can be recognized.

Disadvantages of hydraulics.

1. Because of the large fluid circulation resistance as well as leak, the effectiveness is reduced. If not handled effectively, the leak will certainly not just contaminate the site, but may additionally trigger fire and explosion accidents.

2. As the working efficiency is quickly affected by temperature modifications, it is not appropriate to work under very reduced or extremely high temperature problems.

3. The production accuracy of hydraulic parts is high, so the price is a lot more pricey.

4. Due to the leakage and compressibility of the liquid tool, a stringent transmission proportion can not be acquired.

5. When the hydraulic transmission stops working; the use and also maintenance require a higher technical level, it is not simple to locate out the cause.

Connector setup.

The hose must not be excessively bent when it is relocating or at remainder, neither can it be curved at the root, yet ought to start to bend at least 1.5 times its diameter;.

When the hose pipe is transferred to a severe position, it needs to not be drawn as well securely, it must hang;.

Try to stay clear of torsional contortion of the tube;.

Maintain the tube as far as possible from the heat emitting components, as well as it is essential to mount a thermal barrier;.

Stay clear of exterior damages to the hose, such as long-term friction on the surface of the same element throughout use;.

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

Pipeline installment.

Prior to installment, all steel pipes can be pickled initially, particularly the steel pipelines linked to the ferrule kind pipe joints should be pickled initially, and after that the ferrule is attached to the pipeline end in advance;.

All pipe joints must be cleansed with kerosene before installment, the O-rings inside must be momentarily eliminated for storage, and after that put on after the formal installment;.

During building, maintain the oil ports, pipeline joints, pipe ends and also various other openings of pumps, representatives as well as various other equipment clean, and also do not allow international items such as water and also dust to get in;.

The pipeline shall be laid in a complimentary state, as well as the bonded pipeline shall not be by force repaired and linked by applying extreme radial force;.

The oil hole of the bearing seat need to be checked in development to see if the interior oil circuit is unblocked and also if the oil port string matches the joint.

Pipeline cleansing.

In order to guarantee the cleanliness of the lubrication system and provide the bearings of mechanical equipment with clean grease, the pre-installed pipelines should be eliminated as well as cleaned up. There are 2 kinds of cleaning: kerosene cleaning and pickling.


( 1) Items and methods of kerosene cleansing.

Object. Copper pipes, stainless-steel pipelines;.

technique. 1. The steel pipelines that have actually been pickled prior to pre-installation, as well as the internal wall surface is devoid of corrosion as well as iron range; 2. LIUJIN hydraulic hose fitting that were stained throughout the pre-installation; 3. Eliminate the pipelines and joints that need to be cleansed, as well as utilize towel (( It is necessary not to drop wool). Clean the within the tube with kerosene, soak both ends and joints in kerosene to clean, then layer the inside of the tube with engine oil or fill with oil, and also seal both ends for installation; 4. After cleaning, there ought to be no visible impurities. (Such as iron filings, coarse pollutants, welding slag, etc), pay unique focus to the welding slag on the internal wall of the weld need to be thoroughly cleaned up.

( 2) Pickling things as well as approaches.

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

technique. 1. Use a degreasing agent to eliminate the grease sticking to the pipe; 2. Use clean water to remove the dust on the pipeline; 3. Get rid of the corrosion places on the pipeline wall, rolled iron filings, and so on in the pickling option; 4. Rinse with tidy water For the add-ons created in the above operations, the within of the pipeline need to be cleaned with high-pressure water; 5. Neutralize the acid option remaining on the pipe with lye; 6. In order to properly dry the pipe, the pipe must be immersed in hot water or steam dried out. Make the pipes dry; 7. Inspect the pickled pipelines to see if they are tidy; 8. Seal the opening of the pipeline with plastic or plastic tape promptly after pickling to prevent international issue and also dampness from intruding [1]



The steel pipes that have actually been marinaded before pre-installation, and also the internal wall is cost-free of corrosion and iron range; 2. Get rid of the pipelines as well as joints that require to be cleaned, and also use towel (( It is necessary not to lose wool). Usage clean water to get rid of the dust on the pipeline; 3. Rinse with clean water For the accessories 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 pipeline ought to be submersed in warm water or steam dried.

Website: http://www.liujin-fittings.com/Sae-o-ring-boss-s-series-hydraulic-nipple-1fo-pd40776763.html