Chapter 12 The Peerless Knife
"Young man, how do you want to fight?" Master Lei asked Li Xiang excitedly.
Li Xiang made his request, adding a little of this steel to the old woodcutter, sickle, axe, pickaxe, etc. he brought and repairing them.
If there are many, help him build a high-density knife. The length, size, and shape will be known by Master Lei after just a few words.
So, start cutting materials and start drying.
Master Lei has an electromagnetic high-frequency induction melting furnace here, and he throws the cut steel blocks into it. Although the "rock-breaking hob" special steel is known as the Rolls-Royce of steels, it is extremely hard and has a high melting point, but after entering this The stove soon became as red as fire.
Master Lei said proudly that this stove was a new one for him and it has good performance. It is currently the most efficient, fastest, low-energy-saving and environmentally friendly induction heating equipment for heating metal materials.
After heating, Master Lei took out the steel block with a clamp and placed 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 to the working cylinder through the distribution valve. It pushes the piston together with the hammer head to move up and down to perform the hammering effect. The operation is flexible and can be extended, upsetting, punched, sheared, forged welded, twisted, bent, etc. It is especially suitable for forging small and medium-sized forgings.
During the process of flattening the steel, Master Lei kept praising the material as it was indeed excellent.
"It only takes a few minutes for me to hit other steels, but it takes three times as long to hit this one."
After beating the special steel into the required shape, Master Lei removed the wooden handle of the old hatchet. After the original iron was heated red, it was hammered under an air hammer.
Forging this iron is much simpler and can be completed in less than a minute.
Later, Master Lei used the steel clamping technique to add steel material to the cutting edge.
This is one of the important techniques in sword forging.
Qi Jiguang recorded in the "New Book of Jixiao": "How to make a waist knife: the iron should be refined more, and the blade should be made of pure steel."
It is recorded in Song Yingxing's "Tiangong Kaiwu": "The beautiful sword is wrapped with hundreds of refined steel on the outside, and the steel is still used as the bone. If it is not steel on the outside and iron on the inside, it will break if the force is exerted."
In other words, a good sword needs to be made of tough wrought iron as its core. After heating, it is repeatedly forged and tempered with a sledgehammer to separate out impurities and fill the blade with steel. Only then can the iron be cut like mud without becoming too thin. It will break under force.
Li Xiang also filmed the whole process with his mobile phone as the material for the short video.
If there was something he didn't understand, Li Xiang asked Master Lei.
Master Lei is a good teacher and taught Li Xiang what annealing is, what tempering is, what quenching is... These are all means to improve the toughness, hardness, stability, wear resistance, etc. of the embryo.
Although the "rock-breaking hob" special steel is outstanding, its yield strength can reach a terrifying 1,200 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 cutting tools, if you do not master annealing, tempering, quenching and other techniques, junk products can still be produced. Especially if it is mixed with ordinary wrought iron, the requirements are even higher.
Master Lei has a complete set of tools and experience. In less than an hour, he refurbished all the old tools brought by Li Xiang, and there is still more than 50 kilograms of special steel left in the "rock-breaking hob."
This piece of steel originally weighed more than 70 kilograms. It was heavy but small, so relatively little material was needed to repair those old appliances.
Even so, those old appliances have been fused with super steel and have greatly increased in weight, making them unsuitable for grandma to use in the future. But with Li Xiang at home, why should grandma do any rough work?
"There are still a lot of materials to come. To make a high-density knife, according to the size you just mentioned, it is estimated to cost ten kilograms. What else do you want to make?" Master Lei asked.
Li Xiang pondered for a moment and said: "How about enlarging the high-density knife, thickening, lengthening, and widening it, and make a thirty-kilogram one. For the rest, make a kitchen knife, a three-strand steel fork, and more I took it back.”
Because if there is damage again in the future, the excess material can be used for repair. Master Lei rubbed his ears, thinking that he heard wrongly, and quickly confirmed: "Young man, are you sure you want to hit a 30-kilogram high-density knife? Thirty kilograms, not thirty kilograms? Don't let the work go unfinished and end up hurting yourself instead. I fell down from exhaustion.”
Thirty kilograms are used for work. How many times can an average person swing it? If the waist is lost, wouldn't it be worth the loss?
Even if it is fifteen kilograms, no, ten kilograms, Master Lei thinks it is too heavy. A working knife weighs three to four kilograms, which is pretty good. An ordinary hatchet only weighs one or two kilograms. The smaller ones are even less than a pound.
Li Xiang smiled lightly and said, "It's okay, I can swing it."
Master Lei shook his head like a rattle to express disbelief.
Li Xiang took a deep breath, picked up the remaining fifty kilograms of material, tossed it around in his hands, and danced with one hand, "I'll go," Master Lei was immediately stunned!
He has now stepped into the first level of extraordinary realm. To be honest, a thirty kilogram weapon, no, a wood chopper, can only be said to be barely available. In the future, as your realm improves, you can even do heavier things.
Thirty kilograms, that is, sixty kilograms, about the same as Lu Zhishen’s Zen staff.
Of course, Lu Zhishen's Zen staff is made of wrought iron, while his is made of super steel, which has high density and is smaller in size.
Master Lei never expected that Li Xiang, who looked not very strong, would have such great strength, so he stopped talking and built an all-steel high-density sword according to his request.
Check out the 16-9 book bar and see the correct version!
Even the handle is made of steel.
Li Xiang planned to go back and wrap hemp rope around it to prevent slipping.
After the quenching was completed, Master Lei used the new V-edge sharpening method. After sharpening, he gently scraped the whetstone, and 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 high-quality high-density knife, you no longer have to worry about the blade curling or chipping when cutting bamboo. That's not even a knife!
Then the three-strand steel forks and kitchen knives do not use much steel, one weighs 5 kilograms and the other only 500 grams.
Mainly, grandma also needs to use a kitchen knife. And it’s just for chopping vegetables, so it doesn’t need to be too heavy.
As for cutting bones, what bones can this high-density knife cut endlessly?
Since he was recommended by someone he knew, Master Lei gave Li Xiang a discount and charged a processing fee of 500 yuan. Because all the materials were brought by Li Xiang.
Master Lei also gave him a green charcoal whetstone.
Li Xiang found another store nearby and bought a cutting machine, electric saw, electric drill, iron wire, nails and other items. Then he went to the market and bought ten kilograms of ribs, then rode his mistress back to his house. It will be dark if we don’t go back.
"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 stock up on enough supplies. When the end of the world comes, materials, especially food, are the most precious.
After he went back, he started editing videos on his mobile phone at night. No matter what, he would post an issue first and then talk about it.
(End of chapter)