16-11-2012, 11:44 AM
REPORT On Four Months Industrial Training At HMT Ltd. Pinjore
Four Months Industrial.doc (Size: 1.2 MB / Downloads: 117)
INTRODUCTION
The country, India, is basically an agricultural country where more than 65 % of population population, enough food has to be produced. This cannot be produced with our conventional bullock drawn implements. So there was need felt to invent such machine which speeds up the agricultural production. Due to this reason the tractor was invented.
Before we start, it is necessary to know how the word ‘tractor’ is derived. Prior to 1900, the machine i. e. tractor is known as traction machine (pulling machine). After 1900, both the words joined by taking ‘tract’ from traction and ‘tor’ from motor calling ‘tractor’. The tractor is the machine which is used for applying high traction.
In our country, tractors were started manufacturing in real sense after independence and at present, we are self sufficient in meeting demand of country’s requirements for tractors. At present in India, there are different tractor producing factories present like Hindustan machine tools, Punjab tractors, Kirloskar tractors, etc is directly or indirectly connected to agriculture. Moreover for increasing
COMPANY PROFILE
Birth of HMT
In 1949 the idea of public sector tools was commissioned to be a corner stone for the government’s industrial development plans. This led to the birth of HINDUSTAN MACHINE TOOLS at Bangalore in 1953 which started a single machine tools factory to produce lathes at Bangalore, in collaboration with M/s Oerlikon of Switzerland.
Next, the company widened its product range beyond lathes by entering into technical collaboration with other international leaders in machine tools such as Fritz Werner, Herman Kolb, Errantly Somua, Gildermeister, Liebherr etc.
The second machine tool unit was set up in Bangalore in 1961 making use of the Company’s own resources. The company diversified itself when, in collaboration with Citizen Watch Company of Japan, the first watch factory was setup in Bangalore in 1962 to produce hand watches.
The third machine tool unit was set up in 1963 at Pinjore, Haryana to produce milling machines. In next few years, Machine Tool Units were set up at Kalamessary in Kerala and in Hyderabad. The Printing Machinery division was attached to machine tools factory at Kalamessary to qualities Printing Machine.
HMT’s tractor business commenced its operations in 1971 in technical collaboration with M/s MOTOKOV, Czechoslovakia because of the priority given to the agriculture in the national development plan and to take advantage of the green revolution. HMT started the operations with the manufacturing of 25 Hp tractors. Over the years, it has developed tractors ranging from 25 – 75 Hp.
The unit in Hyderabad began to make lamps and lamp making machines in 1973 to cater to the growing needs of rural. This was followed by producing automatic watches.
A third watches factory was established in Srinagar to manufacture hand wound watches for men. In 1975, the company took over the machine tool corporation of India’s unit in Ajmer, Rajasthan and its name was changed to HMT Limited.
Sand plant system
The main objective of it is to reuse the used lad to the installation of sand plant system. The vital task of sand plant system is to deliver well prepared sand at required place that will determine the efficient working of the foundry. After casing are knocked out of moulding box on a vibratory shakeout box that the used sand is returned to the fixed amount of new sand, binders, catalysts and hardeners to get to the required composition of the sand. Green sand, dry sand and oil sand are being prepared in the sand plant. These constitutes are added in Muller in which all contents are mixed thoroughly and then supplied via belt conveyor system to working stations
Mould making section
Moulds are being made on moulding machine pedantically powered rammers. Metallic patterns are being used. After mould being made on moulding machine, it goes to sand cutter which removes extra sand present and level the mould base, from on to the power operated roller conveyor, the mould is handled using the swing type crane. Core setting is done in drag part of mould. Zircon painting is sprayed on to the mould (as paint is alcohol based hence get dry up by lighting fire).
Function of Injection Pump
The purpose of injection pump is the ensure injection of the flue at high pressure in to cylinder space at certain instance and in correct amount. In gallery of injection pump there are fitted in operates. The injection pump is driven from the timing gear with shaft of injection pump to which it is connected with dog clutch. The cams of the camshaft causes movement of plunger in their barrels by mean of roller tappet to which plunger to is pressed with which rest at the lower spring late. The barrels are secured against turning with pins roller tappet are secured with tannens of roller which mesh with the grooves of pump body. Rollers which contact the camps are fitted on pins.