HVOF sprayed tungsten carbide coating tile roller
HVOF sprayed tungsten carbide coating tile roller
HVOF spray equipment SX-8800
Models: HVOF SX - 8800 MFC , SX-8000 FM , SX-JP5000 Gun supersonic (fuel oil system ) flame spraying equipment
Function: can thermal spray powder, tungsten powder, nickel chromium carbide chromium, nickel chromium alloy, such as thermal spraying metal ceramic coating
Features: guarantee absolute quality of coating, the coating quality first, best performance, the safest option, is a relatively safe combustion model modular design control terminal + PLC control, easy to operate.
SX-8800 MFC
include
1. MFC computer man-machine interface 1 Pcs
2. MFC Control cabinet Gas safety center 1 pcs
3.PLC powder feeder 1Pcs
4. HVOF spraying gun 1Pcs
5.Cooling system 30 Horse power Cold water machine 1Pcs
6.Various standard water pipes and cables 1 set
Application of spraying corrugated roller
1. Performance indexes of supersonic flame spraying tungsten carbide
Hardness: HRC70~80
Binding strength: ≥90MPa
High temperature resistance: more than 1200℃
Surface roughness: Ra0.2
Strong corrosion resistance, not easy to deformation
Coating thickness: 0.04mm~0.1mm
Straightness: 0.015mm-1000mm
2 .the application of supersonic flame spraying tungsten carbide in corrugated roller
Application of thermal spraying tungsten carbide in corrugated roller
A. New corrugated roller sprayed with tungsten carbide
B, the old corrugated roll transformation tungsten carbide corrugated roll
C, the repair of the new tungsten carbide corrugated roller coating thickness of 0.05 ~ 0.1mm, when the long-term use of coating is reduced and can not be produced, we remove the residual tungsten carbide for you to repair, the diameter of the corrugated roller almost unchanged.
3 , tungsten carbide corrugated roll adding process
Tungsten carbide corrugated roll process, unlike traditional corrugated roller, before the first matrix hardness, heat treatment before spraying the shape accuracy is higher, must be finished on the fully automatic CNC grinding, followed by spraying technology is the key, to ensure the hardness of tungsten carbide binding force and the quality of the polishing processing, after the hard part is after spraying, polishing technology, processing of the corrugated roller is different from general workpiece, Its unique tooth shape and high surface hardness (such as diamond) of tungsten carbide, traditional ordinary grinding wheel grinding simply cannot be carried out.
→ Grinding teeth → (medium frequency quenching) → sandblasting → preheating → bottom painting → spraying tungsten carbide (thickness 0.05 ~ 0.06㎜) → polishing - life of 2000 ~ 50 million running meters;
4, the advantage of tungsten carbide corrugated roll
A, tungsten carbide corrugated roller than ordinary corrugated roller life 3-6 times.
B. Generally, the tooth height of corrugated roller changes greatly, and the quality of cardboard is unstable. When the new roller is rolled, the gap between the core paper and the rubber roller should be 0.1mm ~ 0.2mm, but when the middle of the corrugated roller is worn by 0.1mm, the gap will expand, resulting in too much glue, too much water makes the cardboard soft and easy to bend; The tooth height change of tungsten carbide corrugated roller is small and long, and the quality of paper pulling is flat and stable.
C, general corrugant roller middle wear excessive, become concave, can not produce wide cardboard, waste paper, because both ends will be crushed or not paste in the middle (degumping bubble), at this time you have to go to the two ends of the roller, in order to go wide cardboard, maintain the life of the corrugant roller; Tungsten carbide corrugated roller because of wear resistance, there is no problem with narrow paper and then wide paper.
D, general corrugated roll because of fast wear, so the original design of high tooth (corrugated rate), to ensure life; Tungsten carbide corrugating roller because of wear resistance, the design of low tooth high (small corrugating) and long life.
E, general corrugated roller can not use V-shaped corrugated, because corrugated top if small will soon be worn, cardboard will be more and more soft; Tungsten carbide corrugated roll because of wear resistance does not exist this problem.
F, general corrugating roller tooth top wear fast and much, repair after the diameter is much smaller; Tungsten carbide corrugated roller because of wear and wear and less, the diameter of repair almost unchanged. And the most important is: tungsten carbide corrugated roller in the whole roll operation life, its corrugated height almost unchanged.
MFC SX-8800 HVOF equipment Site preparation:
1.main power switch + propane + nitrogen + liquid oxygen ( for HVOF advanced plasma spray gun）
A, nitrogen: nitrogen for powder feeding, common nitrogen cylinder, nitrogen pressure 0.8mpa
B, propane: propane for spray gun ignition, ordinary propane cylinder, propane pressure 0.8MPa
C: liquid oxygen: liquid oxygen gas and kerosene are added together to produce a flame.
3. Ordinary industrial kerosene or aviation kerosene should be clean and free from impurities. Fuel interface can be directly connected to the oil drum and tilt the oil drum. The oil drum should be equipped with 10um fuel filter and re-supply equipment.
4. Should be equipped with busbar and liquid oxygen carburetor, oxygen 1.5 ~ 1.8mpa, (we can quote) self-provided oxygen valve table
5. Can be sprayed ceramic powder, tungste8n carbide, nickel chromium carbide chromium, nickel chrome aluminum,Silicon carbide
6.We can also adjust the production equipment according to the local needs of customers.
Sandblasting room Spraying soundproof room
