Hydraulic fittings and pipe joints common difference

Hydraulic fittings and pipe joints common difference
The largest and most significant difference is that the hydraulic pressure is great staggering, hydraulic tubing impact of sudden burst of oil is large.
I say this certainly can not replace a dedicated with a common connector, because the hydraulic pressure can all be under great pressure, normal pressure up to 0.5 already dying, now we hydraulic tube fittings gap compared to foreign countries too, the hydraulic network of excellence hydraulic industry friends to remind you to interact more development of China's own hydraulic tube fittings.

Electro-hydraulic block brake - Introduction

Brake System Overview
Brake is braking. Is the moving parts of the mechanical stop or slow the mechanical parts. Commonly known as brakes, hydraulic manifold block brake. Frame from the main brake system, the brake member and the operating device and other components. Some of the brake is also equipped with an automatic brake clearance adjustment device member. hose cutting machine In order to reduce the size and structure of the braking torque, the brake is usually installed in the high-speed shaft of the device, but the higher security requirements of large-scale equipment (such as mine hoists, elevators, etc.) jic hydraulic fittings should be installed near the equipment and part of the low-speed shaft work on. Some brakes have been standardized and serialized by a professional factory for selection.

tensile testing machine, tensile testing machine

    Tensile testing machine, also known as tensile machine, mainly used in plastic sheet, pipe, profile, plastic film and rubber, wire and cable, waterproofing membrane, metal reusable fitting wire tensile compression, bending test, Golden Construction Company tensile testing various models machine is the mining industry, commodity inspection, arbitration, research institutes, universities, engineering quality supervision station and other departments ideal testing equipment.
XLD-20 electronic tensile testing machine

The main technical parameters: bsp connector Maximum test force: 20kN; maximum tensile space: 900mm; Test speed: 0.05mm/min ~ 500mm/min
The series description: Chinese LCD, micro-printer
Features:
1 Configuration tensile, compressive, bending fixtures.
(2) Optional large deformation biaxial extensometer and bidirectional follower chuck.

ring stiffness test machine

Ring stiffness testing machine, for having an annular cross-section of thermoplastic pipe ring stiffness determination. Also applies to flat test, ring flexibility tests. Meet PE double wall corrugated pipe, Pipe and various plastic pipe testing requirements of the standard is that all research institutes, quality inspection departments and pipe manufacturer the necessary testing equipment, in addition to support hose adapters the expansion of function creep ratio test for the determination of Large diameter plastic pipe buried simulate its long buried case, the ring stiffness attenuation over time. Users may need additional pipe creep ratio tests.
    This series of ring stiffness test machine has passed the European CE certification.
    Instrument features:
    ◇ gantry type high rigidity frame structure, wide speed control range, sealed vertical axis bracket, super rigid, without gaps ball, the instrument of high precision, good stability.
    ◇ advanced maintenance-free AC servo loop control system, high precision, high reliability; imported reducer and ball screws and improve the control precision and stability. Using high-speed high-resolution AD sampling circuit to ensure peak test data is not lost, hose crimping machine using piecewise linear correction method to ensure force value detecting section high precision and high stability.
    ◇ multi-sensor bridge structure only force value, enhanced anti-bias for large pipe, reducing the chance of damage to the sensor.
    ◇ unique cable-diameter measuring system, without any intermediate links, sample installation more convenient, more direct and accurate measurement can accurately measure the diameter of the pipe changes.
    ◇ PC control software for easy operation to achieve the creep ratio test curve drawing, test process control, test monitoring, sample data analysis, test report printing and other functions; npt pipe fittings using non-equidistant cutting regression algorithm automatically loading the standard requirements , loaded high success rate, greatly reducing the test difficulty; static long-term exploration algorithm ensures constant load and constant load quickly loaded stable.
    ◇ with overload, overcurrent, overvoltage and overtemperature protection, with mechanical, electrical, software and other security features safe and reliable operation of the test.

cold and hot water piping systems Plastic Testing Machine

Plastics piping systems for hot and cold water test machine for hot and cold water with a variety of plastic pipes and fittings (PP, PEX, PVC-C, PB), according to the requirements of assembly and withstand a certain pressure at a temperature after the number of alternating Check pipes and fittings for leaks, the instrument is mainly used for hydraulic hose and fittings pipe fittings after assembly system tests. Hot and cold water systems for thermoplastic pipe fittings system test requirements. Test device using foreign advanced pressure control device for controlling, preventing the pressure fluctuations with temperature and time, the test pressure circulation pump imported from abroad provided to ensure that the pressure of the long-term effectiveness. Temperature conditions under which detection device automatically opens the appropriate return valve, reduce energy consumption, reduce the cost of test. Instrument with a special device greatly eliminates piping noise, are imported refrigeration equipment, power consumption, cooling capacity; reliable security guards and comprehensive level measurement devices to ensure that the high and low liquid level in the tank, When the test fails, the pipeline has ruptured, the time of shutdown; personnel can effectively protect against experimental tests and easy to observe the process of product design fully hydraulic quick coupling simulate the real product practical application scenarios, design ideas unique in the country.
) Pressure control range: 0.4MPa ~ 1.0MPa can be arbitrarily set
2) Pressure control precision: the set value ± 0.05MPa (alternating hot and cold water when no water hammer phenomenon)
3) Hot and cold water alternating time: less than 1 minute
4) Hot and cold water, each cycle: 15 minutes
5) cycles: 1 ~ 10000 arbitrarily set between.
6) Temperature indication error: 0.5 ℃
7) thermostatic bath temperature uniformity: ≤ ± 1 ℃
8) Temperature control range: Cold water: 15 ℃ ~ Hot water temperature: room temperature ~ 95 ℃
9) the applicable maximum hydraulic hose clamps diameter: Ф63
10) Test Station number: 6 channels (12 channels to be special orders)
11) Power supply: 380VAC/220VAC mix
12) Standard Rated Power: 25kW
13) Instrument Size: 5550mm × 2800mm × 1800mm
14) Instrument Installation size: 8000mm × 7000mm × 1800mm

hydrostatic testing machine

 Hydrostatic testing machine is suitable for all kinds of plastic pipe for fluid transport pipe hydraulic transient burst test and long-term under constant pressure damage resistant thermoplastic pipes - Determination of time. Are various research institutes, quality hydraulic hose and fittings inspection departments and pipe manufacturer necessary testing equipment. The machine main technical parameters meet GB/T6111-2003 and GB/T15560-1995 standards, is a simple structure, easy operation, functional diversification of the testing machine, and has a power-down protection.
 Hydrostatic testing machine (pipe pressure burst test machine) using the PC central cluster control. Each channel has a microcomputer for receiving PC control commands to achieve control,hydraulic quick coupling  while constantly put through the serial bus control information back to the PC, from the PC to complete the test data acquisition and storage capabilities. Test the host can also be controlled independently from the PC. Which has a leakage warning, burst identification, real-time monitoring, work offline, power protection, printing, storage test results and other functions. This series testing machine main technical parameters meet GB/T6111-2003 and GB/T15560-95 standards, can be long-term hydrostatic test tubes or pipe pressure burst test is a scientific structure, convenient operation, hydraulic hose clamps functional diversification testing machine.
Features:
1 leakage warning, burst identification, real-time monitoring, with PC control interface.
37 all the way to multi-port test high efficiency, low cost, good economic returns.

plasma arc cutting machine unstable fault analysis

Plasma arc cutting machine cutting quality directly affects the stability of the plasma arc instability will lead to cuts uneven buildup and other defects, can lead to

The control system related to reduced life components, nozzles, frequent replacement of the electrode. For this phenomenon, analyze and propose solutions.

1 pressure is too low

Plasma cutting machine work, such as working pressure is far below the required specification pressure, which means that the ejection velocity plasma arc weakened, input air flow

Is less than the predetermined value, reusable fitting this time can not form a high energy, high speed plasma arc, resulting in poor cut quality, not cut through, cut buildup phenomenon. Insufficient air pressure of the original

Due to: lack of input air compressor, air regulator valve regulator cutting machine is too low, the solenoid valve within the oil, gas path is not smooth and so on.

The workaround is to use the former to observe compressor output pressure display, if not met, adjust the pressure or compressor overhaul. If the input air pressure has reached the required

, You should check the air filter split flanges regulator adjusted correctly, gauge display can meet the cutting requirements. Otherwise deal with air filter regulator routine maintenance, indeed

Paul input air dry, no oil. If you enter the air quality is poor, it will cause the solenoid valve to generate oil, valve open difficulties valve port can not be fully opened. Furthermore,

Torch nozzle pressure is too low, the need to replace the solenoid valve; pneumatic smaller cross-section can also cause pressure is too low, according to the specification requirements replace the trachea.

2 pressure is too high

If the input air pressure bsp fittings far exceeds 0.45MPa, in the form of plasma-arc, excessive concentration of air being blown arc column, so that the arc column energy dispersion, weakened

Intensity of the plasma arc cutting. Caused by excessive pressure causes: improper input air regulator, air filter regulator is too high or the air filter regulator failure

.

The workaround is to check whether the right to adjust the pressure air compressor, air compressor and air filter regulator whether the pressure imbalance. Boot, such as a rotary air filters Less

Pressure valve adjustment switch, gauge unchanged, indicating that the air filter regulator failure, need of replacement.

3 burning torch nozzle and electrode

Due to improper installation nozzles, such as threaded not tighten the device to adjust the gear properly, need water cooled torch at work, did not seek to pass into the flow of cooling water to the

And frequent arcing will cause premature failure of the nozzle.

The solution is cutting the workpiece in accordance with the technical requirements of the gear equipment properly adjusted, check the torch nozzle is installed securely imprison, need to pass cooling water nozzles should provide

Before the cooling water circulation up. Cutting, adjust the thickness of the workpiece between the torch and the workpiece distance.

4 AC input voltage is too low

The use of plasma cutting machine has a large field of electricity facilities, cutting internal main circuit component failures, etc., causes the input AC voltage is too low.

The workaround is to check plasma cutting machines connected to the grid have sufficient carrying capacity, power cord specifications meet the requirements. Plasma cutting machine installation site

Point, you should stay away from large-scale electrical equipment and often have electrical interference. Use, should be cleaned regularly cutting machine dust and dirt on the component, check the wires are

Whether the aging phenomena.

5 Ground poor contact with the workpiece

Grounding is an essential preparation before cutting work. Dedicated ground unused tool, the surface with an insulating material and the long-term use of the ground so serious aging,

Will cause poor contact with the workpiece ground.

The use of specialized tools to be ground, and check the ground insulation effect surface contact with the workpiece, to avoid aging ground.

6 does not automatically break arc sparker

Plasma cutting machine work, we must first plasma arc ignition by high-frequency oscillator excitation electrode and between the inner wall of the gas nozzle to produce high-frequency discharge, the gas

Local ionization of the formation of small arc, this small arc by action of compressed air, ejected from the nozzle to ignite a plasma arc, which is the main task sparker. Normal

, The spark generator working time is only 0.5 ~ 1s, the reason is not automatically broken arc is generally offset control circuit board components, discharge electrode spark gap generator

Inappropriate.

Sparker should always check the discharge electrode, so that the surface remains flat discharge adjust sparker electrode gap (0.8 ~ 1.2mm), if need be,

Change control board.

7 Other

In addition to these reasons, the cutting speed is too slow, cutting torch and the workpiece verticality, as well as the operator of the plasma cutting machine familiarity, operational level, etc.

All affect the stability of the plasma arc, the user should pay attention to these areas.