Quality Assurance Facility – Heavy Mechanical Complex

QA Facility Available

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.

iii. Equipment and machinery

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

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

(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

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

METALLOGRAPHIC TESTING

i.Macro Etching Metals & Alloys

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

ii.Micro Examination

Micro Examination is requires for

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

Equipment and machinery

Specimen Polisher/grinder ROTOPOL-25, Denmark max speed 600 rpm
Specimen grinding machine Chinese, rpm 410/550
Metallographic polisher Chinese rpm 1350
Microhardness Tester Chinese HS-I , x 130-487
Metallurgical Microscope (Brightfield/darkfield) with camera attachment Model 7530 , Meiji Japan upto x 1000
Metallurgical Microscope Chinese XJB-I , x 1500-02 Nos
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

HEAVY MECHANICAL COMPLEX

Iron Strong Tomorrow