"Young man, how do you want to fight?" Master Lei asked Li Xiang with great interest.
Li Xiang told him his request, asking him to add some of this steel to the old axe, sickle, axe and pickaxe he brought with him and repair them.
If there were any extra, he would help him make a high-density knife. The length, size and shape, Master Lei would know it after a little explanation.
So, he started to cut the materials and started working.
Master Lei had an electromagnetic high-frequency induction melting furnace, and threw the cut steel blocks into it. Although the "rock-breaking roller" special steel was known as the Rolls-Royce of steel, it was extremely hard and had a high melting point, but after entering this furnace, it quickly became red like fire.
Master Lei said with some pride that this furnace was newly bought by him and had good performance. It was currently the most efficient and fastest induction heating equipment for heating metal materials, and it was low-consumption, energy-saving and environmentally friendly.
After heating, Master Lei clamped the steel block out with a clamp and put it under the air hammer for forging!
The air hammer is a type of free forging machine. The compression cylinder compresses the air and sends it into the working cylinder through the distribution valve, pushing the piston and the hammer head to move up and down to hammer. It is flexible to operate and can be extended, upset, punched, sheared, forged, welded, twisted, bent, etc. It is particularly suitable for forging small and medium-sized forgings.
In the process of flattening the steel, Master Lei kept praising this material for being really excellent.
"It only takes me a few minutes to beat other steels, but it takes three times as long to beat this."
After beating the special steel into the required shape, Master Lei removed the wooden handle of the old hatchet, heated the raw iron red, and hammered it under the air hammer.
Beating this iron is much simpler and it is completed in less than a minute.
Afterwards, Master Lei used the steel clamping technology to add steel to the edge of the blade.
This is one of the important techniques in sword forging.
Qi Jiguang recorded in "Jixiao Xinshu": "The method of making a waist knife: iron should be refined more, and the blade should be made of pure steel."
Song Yingxing's "Tiangong Kaiwu" recorded: "The most beautiful swords are wrapped with steel that has been refined a hundred times, and the inside is still made of steel. If it is not steel on the outside and iron on the inside, it will break when the force is applied."
In other words, a good sword needs to have tough wrought iron as the core, and after heating, it is repeatedly forged and quenched by a sledgehammer to precipitate impurities, and steel is poured into the blade, so that it can cut iron like mud without breaking under force.
Li Xiang also filmed the whole process with his mobile phone as the material for the short video.
If there are some things he doesn't understand, Li Xiang will ask Master Lei.
Master Lei is a good teacher, and he taught Li Xiang what annealing, tempering, and quenching are... These are all means to improve the toughness, hardness, stability, and wear resistance of the embryo.
Although the special steel of "Rock Breaking Hob" is outstanding, its yield strength can reach a terrifying 1200 MPa, while the yield strength of general special steel is 600 MPa. It can be said to be a super steel among special steels.
However, in the process of forging knives, if you don't master the skills of annealing, tempering, quenching, etc., you can still produce junk products. In particular, it is even more demanding to mix it with ordinary wrought iron.
Master Lei has complete tools and is experienced. In less than an hour, he refurbished all the old utensils brought by Li Xiang, and there are still more than 50 kilograms of special steel of "Rock Breaking Hob".
This piece of steel originally weighed more than 70 kilograms, which was heavy but small in size, and the materials used to repair those old utensils were relatively small.
Even so, the weight of those old utensils increased greatly after being fused with super steel, and they were not suitable for grandma to use in the future. But with Li Xiang at home, why would grandma do rough work?
"There are still a lot of materials to come. According to the size you just said, it will take about 10 kilograms to make a high-density knife. What else do you want to make?" Master Lei asked.
Li Xiang pondered for a moment and said, "How about making the Gaomi knife bigger, thicker, longer, and wider, and making one that weighs 30 kilograms. With the rest, I can make a kitchen knife and a three-pronged steel fork. I will take the rest back."
Because if it is damaged again in the future, the excess materials can be used to repair it. Master Lei rubbed his ears, thinking he had heard wrong, and hurriedly confirmed: "Young man, are you sure you want to make a 30-kilogram Gaomi knife? It's 30 kilograms, not 30 catties? Don't do anything and tire yourself out."
30 kilograms, how many times can an average person swing it for work? What if you sprain your waist, wouldn't it be more than the gain?
Even if it was 15 kilograms, no, 10 kilograms, Master Lei felt it was too heavy. A knife for work, 3 or 4 kilograms is already very good. An ordinary hatchet is only one or two kilograms. A smaller one is even less than one catty.
Li Xiang smiled faintly and said, "It's okay, I can swing it."
Master Lei shook his head like a rattle to express his disbelief.
Li Xiang took a deep breath, picked up the remaining 50-odd kilograms of materials, tossed them in his hands, and danced with one hand. Oh my god, Master Lei was stunned!
He has now stepped into the first-order extraordinary realm. To be honest, a 30-kilogram weapon, no, a hatchet, can only be said to be barely handy. When the realm is improved in the future, he can use heavier ones.
Thirty kilograms, that is, sixty catties, is about the same as Lu Zhishen's Zen stick.
Of course, Lu Zhishen's Zen stick is wrought iron, while his is super steel, with high density and smaller volume.
Master Lei never expected that Li Xiang, who didn't look very strong, had such great strength, so he didn't say much and made a full-steel Gaomi knife according to his requirements.
Even the handle is made of steel.
Li Xiang plans to go back and wrap hemp rope around it to prevent slipping.
After quenching, Master Lei used a new V-mouth blade sharpening method. After grinding, the whetstone gently scraped it, and suddenly a melodious, dragon-like sound came out, which lasted for a long time.
"Good knife!"
Li Xiang weighed it in his hand and was very satisfied. With this excellent quality Gaomi knife, you will no longer worry about curling or breaking when cutting bamboo. That's not one knife per bamboo!
Then the three-pronged steel fork and kitchen knife didn't use much steel, one weighed five kilograms, and the other only 500 grams.
The main thing is that grandma also needs a kitchen knife. And it's just for cutting vegetables, so it doesn't need to be too heavy.
As for chopping bones, what bones can't be cut by this Gaomi knife?
Since he was recommended by someone he knew, Master Lei gave Li Xiang a discount and charged him 500 yuan for processing fees. Because Li Xiang brought all the materials himself.
Master Lei also gave him a green charcoal whetstone.
Li Xiang found a store nearby and bought a cutting machine, electric saw, electric drill, wire, nails and other things. Then he went to the vegetable market to buy ten pounds of ribs, and rode his tricycle back home. If he didn't go back, it would be dark.
"It costs a lot of money to come to the county town, and the financial pressure is huge!" Li Xiang hopes to save more money so that he can stockpile enough supplies. When the end of the world comes, supplies, especially food, are the most precious.
After he went back, he started editing videos with his mobile phone at night. No matter what, he would post one issue first.
(End of this chapter)