ISO 9001
ISO 9001 - Certified Since 1997
ASME
U, U2, S, PP and R Stamps Holder
Lloyds of UK
Pressure vessels class-I - 70 mm

Quality Assurance Facilities

Pictorial Tour of QA Facilities

Click to enlarge

Testing Facilities (Material Testing Labs)

All products undergo through inspection and tests by out Quality Assurance Department at varios stages of manufacturing according to internationally established inspection procedures and methods. HMC is equipped with both destructive and non-destructive testing facilities and a metrological laboratory. 

MECHANICAL TESTING

Tensile testing of metallic materials on Universal Testing Machines (10 Tons, 30 Ton Tons, 60 Ton and 100 Tons)
Hardness testing , Bench type  and portable (Rockwell,Brinnel and Vicker)
Bend testing of metallic materials.
Charpy Impact Testing both at room temp and below zero
Charpy Impact Testing Machine 15/30 Kg-m/CM2
Compression Strength of refractory materials

CHEMICAL TESTING

i. Spectrometric

The department has unique installation of most modern spectrometer (Spectromax Germany of 26 elements) for analysis of Iron/ Steel and Copper based materials / alloys, adjacent to the melting section of HMC to provide accurate reliable and fast track analysis in a  minimum time,  since good process control requires prompt feed back.

ii. Wet Chemistry/analysis

All foundry inputs such as Ferro Alloys (Ferro Silico, Ferro Manganese, Ferro Chrome, Ferro Nickel & Ferro Vanadium etc), Al, Ni, Cu, Tin, Lead and their alloys are got checked before being incorporated into production function, in addition to these following testing facilities are also available.

–              Physical & chemical testing of silica sand and Bentonite Clay.
–              Refractory Materials of all kinds
–              Sodium Silicate, Water and Oil etc

iii. Equipment and machinery

  1. Mill Grindinder RS 1 Retsch Germany 700-1400 RPM
  2. Carbolite Muffle Furnace England , max temp 1500degree centigrade
  3. Electrolytic Analyzer Chinese
  4. Electronic Balance max weighing cpacity 150gms, readability 0.001gm
  5. Heating Furnace max temp 1340 degree centigrade
  6. Muller for bentonite sample preparation Ridsdale & Co, UK
  7. Seive Shaker Ridsdale & Co. UK
  8. Speedy Moisture Tester 0-20%
  9. Strength Tester ,Ridsdale & Co 0-1.3 kg/cm 2

(iv) Calibration

HMC has the facility of repair and calibration of instruments like:-

–      Pyrometers, pressure gauges, thermocouples, temperature indicators, meggers , avometers, voltmeters, dial indicators, vernier calipers, micrometers, sprit levels, steel taps and steel rules etc.

METROLOGY

Measurements

Metrology section has precision machines like:-
–      Projector JTT-500-II , ( 200 x100 / 0.001 mm)
–      Microscope Type JGX3 (200×100/0.001mm)
–      Metroscope JD-5
–      3 Meter length measuring machine JD-10 (0-3 meter/0.001 mm) and others for the measurement of

  1. Various templates, gauges manufactured for use in production.
  2. Sizes of components which can not be measured by ordinary methods.

METALLOGRAPHIC TESTING

  • Macro Etching Metals & Alloys 

–    For the examination of segregation, weld quality, pinholes etc.

  • Micro Examination for

–    Identification of microstructure
–    Grain size determination
–    Examination of Internal cracks
–    Detection of Non Metallic Inclusions
–    Process control 

  • Equipment and machinery 
  1. Specimen Polisher/grinder ROTOPOL-25, Denmark max speed 600 rpm
  2. Specimen grinding machine Chinese, rpm 410/550
  3. Metallographic polisher Chinese rpm 1350
  4. Microhardness Tester Chinese HS-I , x 130-487
  5. Metallurgical Microscope (Brightfield/darkfield) with camera attachment Model 7530 , Meiji Japan upto x 1000
  6. Metallurgical Microscope Chinese XJB-I , x 1500-02 Nos
  7. Metallurgical Microscope Model XJG-4 , x 1600
  • Harden ability End Quench Test

For determining depth of hardness of harden- able steels
Using  Meta Serve End Quench Unit (Buhler UK)

  • Mc-QUAID EHN Test:  for  determination of Austenite  grain size of steel

HYDROSTATIC TESTING

Hydrostatic testing up to 150 bars pressure can be carried out with the existing facility

PNEUMATIC TESTING

Pneumatic testing up to 7 kg/cm2 can be carried out with existing facility

Destructive Testing Laboratory

Undertakes complete mechanical tests and chemical analysis of ferrous and non-ferrous materials.

Non-destructive testing laboratory

Undertakes X-Ray, ultrasonic, die penetrant and magentic particle testing for surface cracks, voids, blow holes, porosity and cavity etc. in welds, castings and forgings

Metrological laboratory

Undertakes calibration of measuring instruments, checking of profiles, angles & surface finishes etc.