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FONCOATING ALLOYS & EQUIPMENT

THERMAL SPRAY PROCESS

Thermal Spray Process (TSP) refers to the best of coating techniques that use thermal energy to melt and spray metal powders to form dense coatings.
Combustion flame spray system with metal powder feed mechanism can produce metallic and ceramic coatings. Thermal spraying is a process in which metallic and ceramic materials are deposited in a molten or semi-molten condition on a prepared substrate

5P- II THERMO SPRAY GUN

5P - II Thermo Spray Gun is a high performance, general purpose, flame spray gun designed to produce high quality coating at low cost, with little technique dependence. It is suitable for all purpose use and can apply a wide range of coating materials such as self fluxing alloys, one-step coating powders, steels, stainless steels, bronze, aluminium, nickel and its alloys and ceramic powders. Deposit efficiency is over 95% with many materials with spray rates upto 9 kgs. per hour.

 

THERMAL SPRAY COATING ALLOYS

FM 1

Special Characteristics : 
 
The first coat with this powder is mandatory to provide adhesive base before depositing FM - 2, FM - 3, FM - 4
Nickel aluminium alloy
Excellent bonding with almost all metals
Highly ductile and dense structure which can be easily machined or ground
Coating thickness not required to exceed 0.1 - 0.2 mm
Hardness: 65 - 80 Brinell
Equivalent to Metco - 450 NS


FM 2

Special Characteristics : 
 
Aluminium bronze alloy
Deposit is of work-hardening type with low co-efficient of friction
Highly resistant to corrosion from alkaline media
Easily machinable
Permeable surface coating to enhance service life
Hardness : 50 - 80 Brinell
Equivalent to Metco - 51 NS


FM 3

Special Characteristics :
 
Ni-Cr-Mo alloy
Deposits have low co-efficient of friction and are work hardening
Over-lay highly resistant to oxidation and corrosion
Machinable with carbide tipped cutting tools
Permeable surface coating to prolong service life
Hardness : 85 -92 Brinell
Equivalent to Metco - 41 C


FM 4

Special Characteristics:
 
Nickel & copper alloys 
Hardness : 34 - 36 Brinell
Equivalent to Metco - 42 C


FM 5

Special Characteristics : 
 
Self bonding 80Ni/20Cr alloy
Having resistance for corrosive gases upto 9500C
Hardness : 90 - 95 Brinell
Equivalent to Metco - 43C-NS


POWDER WELDING PROCESS

Powder welding process or spray & fuse process applies Foncoating powders or Composite powders by means of a special oxy - acetylene torch. 
 

The powders are deposited with metallurgical bondage at lesser temperatures as compared to the welding temperatures. The process is ideal for thin hard coatings and build up & surfacing of cast iron glass moulds etc.
MANUAL POWDER SPRAY TORCH: SPT - 100

Ideal for extremely thin or dense build-ups and hard protective coatings Gives metallurgically bonded coatings eliminating chances of peal-off Sleek light weight handle body with precise gas flow regulators Nozzle and three range tips in copper construction Rotating knob to save pinch valve from continuous depression during storage Reliable helical spring controlling lever position Easily replaceable pinch valve and O-ring

POWDER WELDING ALLOYS

MP 1 

Special Characteristics :
 
Ni-Cr-Si
Used for corrosion, abrasion and wear resistant applications. Pump shafts, valve trims, shaft sleeves, wings of centrifugal pumps, shift levers, agitator arms, mixing blades, wire drawing cones, guide rollers, conveyor screws etc.
Hardness : 60 RC
Melting range: 1005 - 10500C


MP 5F

Special Characteristics :
 
Ni-Si-B
Easy flowing and corrosion resistant coatings used for repair of glass moulds and rubber industry, filling up of shrinkage cavities on castings. Suitable also for making joints.
Hardness: 20 - 22 RC
Melting range: 10200C


MP 60 S

Special Characteristics :
 
Ni-B-Cr,W-C
A popular composite powder for use by the powder welding process. Contains 50% carbide grains which impart extra abrasion resistance. Should be considered for very harsh abrasive conditions especially when corrosion is also a factor 
Hardness : 60 & 72 RC
Melting range : 1030 - 1090 & 2300 0C

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