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Ministry of Medium Machine Building was created in 1953.

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How are pulleys used to change the chuck speed of a pillar drilling machine?

The pulley attached to the motor usually has a large wheel on bottom, two medium wheels in centre of the stack and a small one on top. The front, or spindle pulley, is fitted with the large wheel on top. The drive belt can go from top at back, to top at front -thus driving the spindle slowly. If you changed the belt to the big motor pulley and a small spindle pulley the spindle would rotate faster.


What type of metal are bobby pins made of?

medium and high carbon steels may also be called spring steel


Hardness of grade 5 bolts?

A grade 5 hardness bolt is a bolt made of medium carbon steel and depending on the manufacturer can either be or not heat treated.


What is the difference between the Tecumseh HM80 small engine and the Tecumseh HMSK80 small engine?

HM80 stands for horizontal medium-frame 8 HP and HMSK80 stands for horizontal medium-frame Snow King(in other word a snowthrower engine) generally equipped with a looped starter grip for mittened hands, intake system that resists icing and possibly an electric starter that uses household current.


What is the difference between injection molding and transfer molding?

The difference is within the machine and processThe presses used for injection molding are horizontally operated with a unique material delivery system. The thermoset compound is fed and injected with a high speed reciprocating screw, or a plunger system that reduces glass degradation for better part strength. The major advantages of injection molding:Better for small to medium part sizes (0.1 lbs to 6 lbs) in high volume.Tight tolerances can be achieved with these low-shrink materials. Post curing is not needed.Consistent material delivery into the mold cavities.Good strength for small parts, especially when molded with Thick Molding Compound (TMC).The presses used for transfer molding are vertically operated and equipped with a hydraulic transfer system and controls. The thermoset compound is loaded into a chamber known as the transfer pot. The mold is then closed and a transfer plunger forces the compound from the pot through the runner system and gates into the mold cavities. The major advantages of transfer molding:Better for small to medium part sizes in medium to high volume.Good for molding in complex metallic inserts into the part (encapsulation).Tight tolerances can be achieved with these low-shrink materials. Post curing is not needed.Consistent material delivery into the mold cavities.