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Infrastructure :-
Oswal investment casting a highly sophisticated state of art investment casting plant with well experienced teachnical team, having manufacturing capacity of 150 MT. per annum. At persent we are 100% utilisingour plant for our submersible pumps & motors parts like Impeller, Bowls, Diffusers upper housing, lower housing and other parts. However we are interested to suplly investment casting part for Domestic / International markets as per customer specifications.

Application of investment castings:-

Unlimied field of application of investment casting part due to it's technological value & design factors.

1. Electric Motors & Pumps Industry

2. Refrigeration & Food Process Industry

3. Automobile Industry

4. Fire Fighting Equipment

5. General Engineering Industry



Electric Motors & Pumps Industry

All kind of pumps spares like casting Impeller, bowls, diffuser for horizontal & vertical pumps, submersible pumps, self priming mini pumps & vaccum pumps. Also motor spares like Front & rear bearing housing, air cooling fans, upper housing ,lower housing for all types of motors. Tilting segment for bearing.


  Refrigeration & Food Process Industry


Ice cream, dairy plant, food processing Machine parts, clamp, furrle, 2 & 3 way valve Body for refrigeration industry, all kins of ball valve, gste valve, solenoid valves & all types of fitting like tee, elbow, and socket & coupling.


 

                 

 






Automobile Industry

Precombuston chamber for tractors, matadors, tata sumo, gear shifter for 4 wheelers vehicles, water pumpbody, Timing belt pulleys, 2 wheelers spares.
 

Fire Fighting Equipment

Coupler, clam, knurling bush, hydrant valve, sprinkler, male female coupling, Nozzle etc.


 



General Engineering Industry

All types of gears, chainlink, Sewing machine parts, electrical conductor parts and sparesfor textile, aero space Orthopaedic and all general industries which requires of high degree of as cast finish with complicated design.
  Sailent Feature:-

1. Components weigh from 10 grams to 35 kgs. Can be easily cast without any practical difficulty by this process.

2. High accuracy of complex shape and design with obsolete reproduction of fine holes, slots can be cast by his    process.

3. By this process products which is essentialy a near net shape where in machine is totaly eliminated or reduced    to aminimum is possible.

  Material used for Investment Casting:-

All types of ferrous- carbon steel, stainless steel, steel alloy and aluminium / copper based alloys in accordance to the ASTM / ISI srandered.
 
Manufacturing Process:-


 



Die Making:-



I
nvestment casting dies are specially madefrom aluminium / Hard Die steel - with a single or multi cavity to produce wax replicas of the required Components.

 

Wax Replicas:-


Wax replicas are made by this process by injectingthe molten wax in to the single / multi cavity dies.


 

Pattern Tree:-


The individual wax replicas or assembled to form a single mould looks like a patent tree / cluster.


 

Shell Making:-




The pattern tree / cluster is dipped repeatedly i liquid binder or ceramic power for several times with time intervals for curing to form a shall mould with thickness from 5 to 12 mm depending upon the shape & size of the components being produced.



  De Waxing of Shells:-

By this process the wax is melted out from shells, leaving a hollow ceramic shells.


 

Shall Baking:- .




Before casting the hollow shells are well backed in shell baking furnace so as to with stand high temperature / pressure during casting process



 

Casting:-



The molten metal from induction furnace is poured in to the shells to make casting in the form of tree / cluster with several number of similar components together.


  Knock-out /
   Cutting / Finishing:-
Casted shells are then knocking out with pneumatic hammers & cutting the individual components by cut-off machine then final finishing by air grinding / shot blasting process to get final "AS CAST".





 

     
  List of plant & Machineries:-  
 

OSWAL INVESTMENT CASTING

List of Principal plant & Machineries

Sr.No. Description of Equipment / Machinery
Year of Mfg.
Qty (No)
1
Medium Frequency Induction Melting Furnance
125 Kw, Capacity: 100 Kg & 50Kg Crucibles
2004
1
2
Shell Baking Furnance
2004
1
3
Injection Moulding Press (Vertical Injection)
2004
4
4
Injection Moulding Press (Horizontal Injection)
2004
1
5
Wax Extrusion Press
2004
1
6
Sand Raining Machine
2004
2
7
Fluidized Bed with dust Collector
2004
1
8
De-Waxing Machine with Electric Control Panel
2004
1
9
Shot Blastting Machine
2004
1
10
Knock out Hammer
2004
2
11
Belt Grinders / Pedstal Grinders
2004
8
12
Cut-Off Machine
2004
1
13
Vertical Drilling Machine 'Maruti' Brand
2004
2
14
Lathe 'Balaji' Brand
2004
1
15
Diesel Generator Set 125 KVA
2000
1
16
Air Compressor
2004
1
17
Arc Welding Set (Rectifier 600 Amp)
2004
1



OSWAL INVESTMENT CASTING

Laboratory Facilities & Quality Assurance / Control Testing Equipments & Instruments (Proposed)

Sr.No. Description of Equipment / Machinery
Year of Mfg.
Qty (No)
1
Hardness Testing Machine
(Rockwell + Brinell Combined)
2004
1
2
Carbon & Sulphur Apparatus
2004
1
3
Air Oven 2500 C (450 X 450 X 450)
2004
1
4
Analytical Weighing Balance
2004
1
5
Metallurgical Microscop
2004
1
6
Hot Plate (Thermostat Control)
250 X 400 X 450 X 600
2004
2
7
All Necessary Metrological Instruments required for Dimensional Inspection Viz.
Vernier Calipers, Micrometers, Height Gauges, Surface Plate, Dial Indicators, etc.
2004
5 each