Intelligent electromagnetic flowmeter installation method
1 There is no obstruction in the measuring tube, so there is no additional pressure loss, ie no additional head loss for tap water measurement. PTA Powder
Main application:Repair and
strengthen workpiece surface, significantly
Welding method:PTA welding
Main equipment:PTA welding
machine
Flame core temperature: about 10000℃
Technological characteristics:PTA has high
temperature, concentrated energy, stable combustion, small heat affected zone,
fast welding speed, high production efficiency, easy to obtain low dilution
rate of surfacing layer, surfacing layer and workpiece matrix are metallurgical
bonding,, bonding strength is high.
PTA welding technology is one of surface
strengthening methods, which has high deposition rate, low dilution rate, and
could be applied with many kinds of powder. The manufacturing craft of PTA
powder is normally gas atomization, which reduces satellite of powder. We
supply 4 main categories of PTA powder: Nickel-based alloy powder, Iron-based
alloy powder, Cobalt-based alloy powder and Mixed Powder.
Nickel Based Alloy Powder possesses high
temperature resistance and wear resistance, it is the most popular alloy powder
applied by PTA welding both domestically and internationally. Coating hardness
is within the range of HRC 30-60. It could be applied to various industries
like agriculture, plastic, paper, marine and steel making where wear and
corrosion protection needed. Some examples are plunger, moulds, pump leaf and
screw.
Iron Based Alloy Powder is more widely used
and a more economic choice. With high abrasive resistance, it is more commonly
applied to mining tools, drilling tools and mixers of iron and steel making
industry, coal industry, shaft, oil and energy industry.
Cobalt Based Alloy Powder is recommended
for corrosion and oxidation resistance, with better hot hardness values than
equivalent Nickel based alloy powder. It is widely applied to steel making
industry, coal industry and mining industry.
Mixed powder mainly refers to NiCrBSi
mixing with other hard-phase powder such as cast tungsten carbide and other cemented
alloy powder, which allows the powder better hardness around HRC60 and
excellent abrasion resistance.
Mixed powder is more often used for mining
equipment for oil sands, lignite, oil drilling tools, excavator buckets,
extrusion screws for plastic processing, grain and oil processing, etc.
PTA Powder,Iron Based Alloy Powder,Cobalt Based Alloy Powder,Nickel Based Alloy Powder Luoyang Golden Egret Geotools Co., Ltd , https://www.xtcalloypowder.com
2 The flow rate of the fluid in the forward and reverse directions can be measured.
3 Because the measurement results are independent of physical parameters such as pressure, temperature and conductivity of the liquid, the measurement accuracy is high and the work is reliable.
4 Only the pipe and the electrode are in contact with the liquid to be tested. Therefore, as long as the electrode material is properly selected, corrosion resistance and wear resistance can be achieved. It has the characteristics of long service life and low maintenance requirements.
5 The output signal mode is flexible. There are pulses, currents, frequencies, etc.
Intelligent electromagnetic flowmeter use and installation requirements:
1 In the installation process of the intelligent electromagnetic flowmeter, the sensor grounding ring should be grounded reliably, and the grounding resistance should be no more than l OΩ.
2 The upstream pipeline of the intelligent electromagnetic flowmeter has at least 5 pipe lengths of straight pipe sections, and its downstream has at least 3 pipe lengths of straight pipe sections. When conditions permit, the length of the straight pipe before the flowmeter is relaxed is 10 times the pipe diameter.
3 In the upstream pipeline of the flowmeter, install the valve outside the front distance, especially if the butterfly valve or the right angle bend pipe seriously affects the flow characteristics, install a rectifier in the straight pipe of 5 to 10 times of the upstream diameter of the flowmeter to achieve stability. The flow of water is used to improve the accuracy of measurement.