When the mixture is almost done, let the alloy cool down, and then put it in nearly boiling water to heat it again. You can also use a double-layered steamer. Unfortunately, Haitang's family has already given the one to a neighbor, or you can simply use a measuring cup and put it in the hot water.
Leave for a few minutes.
Then pour the molten metal into the mold. You may feel that holding the casting mold in your hands is very fun, and it looks very draggy, but you have to know that the metal is hot enough. If it overflows too much, it will spill on your hands.
It will burn you. It is no more dangerous than boiling water, but it is not less dangerous at all.
Everything was done, Lao Bai looked at it eagerly, and now comes the waiting process.
"Old Bai, you have to be patient." Haitang looked at Lao Bai who was holding his chin and said. You have to wait until the metal hardens in the mold. Because the melting point is very low, the solidification process takes longer than initially thought.
long.
It took two or three hours before it was completely solidified. Lao Bai had already watched a movie.
Then he carefully took out the spoon from the mold. Haitang asked Lao Bai to do the rest of the process directly, that is, put the spoon into the boiling water, stir constantly, and it would completely melt in a few seconds!
"Dad, what does this feel like?" Haitang asked.
"Ah, when the spoon turned into a small puddle of liquid metal at the level of the cup, I poured out the water and touched the liquid metal with my fingers. I felt it harden on my fingertips! This is much more real than magic.
, as if my fingers have magic power!" Lao Bai was so happy that he started to pick it up. This was a brand new experience.
"Actually, if you want to keep playing this game, you can. For example, you can melt it with a cup of hot water, pour it into a mold, and make a new spoon. From then on, this spoon will play an infinite role in your life.
It’s a cycle." Haitang said.
Lao Bai quickly followed suit.
"It's so fun, why isn't it available on the market?" Lao Bai asked.
"Of course it's the price. Indium is three times more expensive than silver. Using indium, you can make an alloy that melts in warm water or even in your hands, but it's more expensive than indium and it stains the glass.
And it will change the color of your skin..." Hearing what Haitang said, Lao Bai's great idea was once again strangled in the cradle.
"There really is no alloy that can replicate the low cost, bright sparkle, and non-sticky fun of mercury. Unfortunately, playing with it for a long time will cause poisoning and damage my brain..." Lao Bai said.
"Well, you have some common sense." Haitang praised.
"What do you mean, I am also your father, and Teacher Fang is here, so I must know more than the average person." Lao Bai said proudly.
"Ahem, in fact, this is mentioned in primary school textbooks. Children as young as seven or eight years old know that if you, as a biological father, regard this as erudition, my daughter will be so ashamed that I wish I could jump into a mercury molecule..." Haitang said.
"You are so big, how many mercury molecules are needed to fit it in? It's unscientific, and it's almost as good as jumping into the sea." Father Haitang thought for a while.
Is it my biological father who instigated me to jump into the sea...
Bang bang bang, white eyes flew over one after another! They were approaching Lao Bai! There was no way he could hide away! The cold was so intense!
"Daughter, I don't have much hope in this world. I just want to meet my first love, the one from the Wang family, the Li family, the Zhang family..." Fang Rong counted on her fingers.