Vacuum pump is through mechanical, physical, chemical and other methods of pumping the container to be evacuated to obtain the vacuum device equipment. The working principle of the vacuum pump can be divided into two types of gas capture pump and gas pump, vacuum pump vacuum technology can be divided into mechanical and physical methods. First, the law 1, the varactor vacuum pump, pump cycle is to use the cycle of change to complete the intake and exhaust to achieve the purpose of pumping. This pump points reciprocating, rotary two. 2, momentum transfer pump, which relies on high-speed rotating blades or high-speed jet, the momentum transfer to gas or gas molecules, the gas from the pump inlet to the outlet continuously. Molecular vacuum pump steam jet pump, diffusion pump belongs to this category. Second, the physical law Gas trap vacuum pump is a gas molecule is adsorbed or condensed in the pump on the surface of the vacuum pump, the following forms: 1, adsorption pump. A trapping vacuum pump relies on the physical adsorption of adsorbents with large surface area, such as porous material. 2, getter pump. It is a vacuum pump that uses a getter to chemically trap gas. Getters are usually metals or alloys that exist in the form of lumps or deposited fresh films. 3, getter ion pump. It is to make the ionized gas through the electric field or electromagnetic field adsorption on the surface of the getter material to achieve the purpose of pumping. It has the following two forms. a, evaporative ion pump: ionized gas is absorbed in the pump in an intermittent or continuous manner sublimation (or evaporation) and coated on the suction pump material inside the wall, in order to achieve a vacuum pump. b, sputter ion pump: the pump is ionized gas adsorption in the cathode from the continuous splashing out of the gettering material to achieve the purpose of pumping a vacuum pump.
Huifeng Wear Resistant built
joint venture with Vautid GmbH manufacturing comprehensive Flux Cored Welding
Wire and Electrode as an professional wear solution provider.
We offer welding wires for low,
medium and high alloy hardfacing, for mild steel fabrications, Diameters range from
1.2 mm to 4.0 mm, using our own manufacturing technology. In addition to cored
wires, our range of consumables includes tubular welding electrodes.
HP Welding manufactures an extensive
range of flux cored and metal cored hardfacing consumables. We offer
welding wires for low, medium and high alloy hardfacing, which provide the
ultimate protection against various types of wear, including abrasion, impact,
mechanical fatigue, and more.
Our
range of hardfacing welding wires dedicated to increasing abrasion resistance.
Flux cored wires and metal cored wires suitable for increasing wear resistance
of parts such as screw conveyors, fans, equipment used in agriculture &
mining, grinding mills, vertical mills, screws, blades, ventilators, screw conveyors, riddles for hot materials, fans,
crushers and more.
HP Welding manufactures a range
of flux cored welding wire and metal cored welding wire for different
cladding applications to increase wear resistance. With our cladding wires, you
will prevent wear problems from abrasion, impact, temperature, and increase the
service life of your parts.
HP
Welding wire could make the ultra-hard deposit offering extremely high
resistance to abrasion under high stresses and moderate impacts
HP
Welding wire forms the ultra-hard deposit offering highest resistance to
abrasion which contains boron carbides of extreme hardness
HP
Flux Cored Wire Spec data, Chemicals and Applications
Item
Chemicals
Hardness (HRc)
Application
C
Si
Mn
Cr
Mo
B
Others
Fe
HP-280Mo
4.5
0.8
0.6
28
1
Balance
58~62
Coal Mill; Vertical
Mill
HP-280
4.5
0.8
0.6
28
Ni:0.15
Balance
58~62
HP-252B
5
0.8
0.6
25
0.38
Balance
58~62
HP-252B+
5
0.8
0.6
25
0.7
Balance
59~64
Wear Plate
HP-1996
0.08
0.8
6.5
19.8
Ni:9
Balance
HB180-220
Buffer layer
HP-250
0.11
0.5
1.5
1.1
0.25
Balance
24-32
Welding Recondition
Backing weld
HP-265
5
0.7
0.5
22
Nb:7
Balance
61-64
Slag Mill;
Hardfacing Enhancement Layer
Chromium Carbide Flux Cored Wire, Niobium Carbide Welding Wire, Molybdenum Carbide Welding Wire, Tungsten Carbide Welding Wire, Hardfacing Electrode, Alloy Welding HuiFeng Wear Resistant Group , https://www.hpwearsolution.com
