Industrial Large 10HP 15HP 20HP 30HP 40HP 50HP Electric AC Motor

• Application: Industrial
• Speed: Constant Speed
• Number of Stator: Three-Phase
• Function: Driving
• Casing Protection: Protection Type
• Number of Poles: 6
• Starting Mode: y-δ Starting
• Certification: ISO9001, CCC, CE
• Brand: Liyuan
• Housing: Aluminum
• Cover: Aluminum
• Terminal Box: PPO
• Fan: PP
• Fan Cover: A3
• Shaft: C45
• Transport Package: Carton or Plywood
• Trademark: LIYUAN
• Origin: Fuan
• HS Code: 8501520000
• Production Capacity: 50000 Pieces/Year

Product Description

Industrial Large 10HP 15HP 20HP 30HP 40HP 50HP Electric AC Motor

Recommendation

 

Product Description

 

Model	kw	HP	Current	Speed	Eff	Power Factor	Tst/Tn	Ist/In	Tmax/Tn
MS-132M2-6	5.5	7.5	13.1A	960 rpm	83.1%	0.77	2	6.5	2

Company Profile

 

FAQ

1. Welding, a key control requirement for motor production
   1 Pre-oxidation of electrothermal alloys
   
   The reason why the electrothermal alloy can withstand high temperature and has a certain service life is mainly because during the use process, a denser oxide film can be continuously formed on the surface, which protects the inside of the alloy.
   
   The oxide film of iron-chromium-aluminum electric heating alloy is mainly composed of aluminum oxide, which is light gray; the oxide film of nickel-chromium electric heating alloy is mainly composed of chromium oxide, which is dark green. These oxide films are dense in organization and have a high melting point. They can be very closely attached to the base of the electrothermal alloy, and thus play a good role in protecting the internal base.
   
          Based on this principle, pre-oxidation treatment is performed on the electrothermal alloys used in harmful environments, that is, an oxide layer is formed on the surface in advance to avoid the erosion of the matrix structure by corrosive and harmful gases.
   
   Of course, at this time, it should be considered whether the harmful gas will interact with the oxide film, that is, the adaptation of the electrothermal alloy to the atmosphere. Otherwise, it will not play a protective role, but will accelerate the destruction of the electrothermal alloy and shorten its service life.
   
          Electrothermal alloys refer to resistance alloys that utilize the resistance properties of metals to make heating elements. Including Ni-Cr and Fe-Cr-Al alloys. Widely used in electric heating elements of various industrial electric furnaces, laboratory electric furnaces and household appliances.
   
   2 Welding of electrothermal alloys
   
   Welding method
   
   Due to its own characteristics, electrothermal alloys need to use different welding methods. Especially in the welding process of iron-chromium-aluminum electrothermal alloys, grain growth is more likely to cause brittleness, and it cannot be eliminated by heat treatment. Therefore, it is required to use Quickly weld and increase the welding current as much as possible to shorten the welding time, even if the grains are not excessively grown, so as to avoid brittle fracture at the weld.
   
   If it is better to use argon arc welding, DC arc welding can also be used. In addition, in order to limit the heating range, intermittent welding can be used, and only a small section is welded each time, leaving a small section in the middle to not weld, and then welding the second small section. For the same reason, the starting point and end point of the weld must be about 5mm away from the end of the material to prevent the single strands at both ends from being overheated and brittle. If it is not used immediately after welding, the welding part must be annealed at about 800 ºC to eliminate welding stress.
   
   
   
   The welding time of acetylene gas welding is long, and it is easy to make the grain grow, so it is necessary to control the welding time. Nickel-chromium heating alloys are not like iron-chromium-aluminum heating alloys. The grains are easy to grow, so it can be welded by arc welding or gas welding.
   
   Welding materials
   
   When welding iron-chromium-aluminum alloys, electrodes of the same material must be used. Austrian 402 (Cr25Ni20) or graphite electrodes can also be used for welding at the leading end. The flux can be 50% borax plus 50% fluorite powder (calcium fluoride). After soldering, the residual flux on the surface should be removed. In addition to welding with the same material, nickel-chromium alloys can also be welded with stainless steel electrodes.
   
   3 Welding precautions
   
   In order to reduce the temperature of the lead-out end, reduce the power loss, and facilitate the connection of the power line, the electric heating element leads out one end of the furnace body. Generally, the element itself is not directly connected to the power line, but another lead-out rod or lead-out belt is welded. The cross-sectional area of the lead-out rod or lead-out strip is generally greater than or equal to three times the cross-sectional area of the element. In order to reduce the temperature of the terminal to an appropriate limit. At the same time, it is also convenient for the connection between components and power lines. The cross-sectional area of welding points and welding seams should not be less than the cross-sectional area of the welded component itself, so as to reduce contact resistance and ensure the firmness of welding.
   
          After the iron-chromium-aluminum electric heating alloy is welded, it becomes brittle due to the growth of the heated grains, so the welding between the lead-out rod and the element and between the element and the element must take appropriate strengthening measures to prevent brittle fracture during installation. Generally, the drilling method and the milling method are used for the welding of linear components. The drilling method is to drill a center hole at the end of the lead-out rod, insert the alloy wire, and weld on the reserved hole on the side, so that the brittle area caused by welding is all buried in the center hole. The slot milling method is simpler than the drilling method. First, a slot is milled at the end of the lead-out rod, the alloy wire is put in, a notch is pressed on the edge of the slot, the wire is clamped and fixed, and then welded. Ribbon components use wrap welding and clip welding. The clip welding method is to use two identical strips on both sides of the joint, and the edge of the component must be several millimeters higher than the clip, and then welded.
   
   Welding of nickel-chromium electrothermal alloys: Butt welding can be used for linear components, and lap welding can be used for strip components.