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Using of the ladle in the cold chamber die casting has no affects on contact time between the molten metal and the shot chamber.

Using of the ladle in the cold chamber die casting has no affects on contact time between the molten metal and the shot chamber. Correct Answer False

When the molten metal is ladled into the shot chamber of the machine either manually by a hand ladle or by an auto ladle, which is a form of a robotic device. This process reduces the contact time between the molten metal and the shot chamber, so the high melting temperature materials can be cast easily.

Related Questions

Amar and Baron are given a six-shot pistol that has only one bullet in its cylinder. Both of them fire a slot one after the other. A shot can be a black shot or a lethal shot. The one, who fires a lethal shot, is the winner. After each shot, the cylinder of the pistol is shuffled so that the other person has a fair chance of firing a lethal shot. It is also known that Amar had the opportunity to fire the first shot. What is the probability that Baron wins the game?
Consider the following statements. (1) Hot chamber machine is used for casting zinc, tin and other low melting alloys (2) Cold chamber machine is used for die casting of ferrous alloys (3) Rapid cooling rate in die casting produces high strength and quality in many alloys Which of these statements are correct? 
In a steel pouring ladle, the distance between the top of the ladle and the surface of the contents of the ladle is called
In cold chamber die casting, rapid cooling of the castings is done as compared to the hot chamber die casting.
The chances of defects in the castings by cold chamber die casting are more than the castings produced by hot chamber die casting.
Molten steel is kept in a ladle. Due in natural convection. mixing occurs inside the melt. A 1cm diameter sphere is held in the centre of the melt where the steel flows upward. so as to measure the force exerted by the melt on the sphere. The force. F exerted by the melt on the sphere is given by $$F = f\left( {\frac{\pi }{8}} \right).\left( {\frac{{{\mu ^2}}}{8}} \right){\left( {\operatorname{Re} } \right)^2}.$$
Data: Density of liquid steels
= 7100 kg. m-3
Viscosity of liquid steel
= 6.5 × 10-3 kg. m-1. s-1
Reynolds number (Re) of the melt
= 5 × 103
Friction factor (f) = 0.3
The velocity of melt (m.s-1) in the central portion of the ladle would be
In vacuum die casting, the molten metal enters into the cavity slowly as compared to the die casting.
In vacuum die casting, the molten metal does not experience any back pressure while injecting it into the die cavity.
There are 5 players of P, Q, R, S, and T. Each of them live on different floors of the five-storey building, which are named as the ground floor, first floor, second floor, third floor and fourth floor. Each of them prefers different sports, such as shot put, javelin throw, kabaddi, long jump and gymnastics but not necessarily in the same order. (i) S likes long jump and lives just below T,who lives on the third floor. (ii) Two players live in between R and Q, R and Q prefer spear throw and shot put respectively. (iii) The player who likes gymnastics lives on the ground floor and lives just below the player who likes the shot put. Who lives on the middle floor of the floors on which T and Q live?
In hot chamber die casting processes, downward motion of plunger in the gooseneck leads to injection of molten metal into the cavity with high pressure.