Chapter 268: The Mystery of the Blade

"Can I try this edge?" Hibbs couldn't pretend any more, and he couldn't wait to ask Qin Hai.
Qin Hai laughed: "Please, but you have to be young ..."
Before he could say the word "heart", he saw that there was a touch of red on Hibbs's finger. This unbelieving guy actually tried the blade of the rake with his hands, and was cleanly cleaned. Cut a hole.
"This is impossible!" Hibbs shouted abnormally. "How did you solve the problem of ceramic cutting!"
Everyone knows that ceramic is a highly wear-resistant material. Tolfsen also has a team that is working hard to solve the problem of cutting the ceramic foundation. Or more precisely, it is to study how to make ceramic appliances thinner while ensuring strength.
The ceramic is fired from porcelain clay. The porcelain clay itself is not too sticky. If it is made too thin, it will easily break. In order to improve the viscosity of porcelain clay, ceramics scientists try to mix colloidal matter into porcelain clay, turn porcelain clay into a more viscous clay, and then use extrusion or forging to make thinner appliances.
After the appliance is formed, sintering is necessary, which is an indispensable process for ceramic production. During the sintering process, the colloids in the porcelain clay will evaporate due to the high temperature, leaving only the porcelain clay to change into a ceramic through a kiln. The problem lies in the evaporation of colloids. After the colloids are evaporated, there will be countless tiny holes in the porcelain clay. This will reduce the strength of ceramic products, and may even leave hidden dangers of foreign body penetration.
Without being able to solve the above technical problems, Tolfsen's engineers have been unable to produce ceramic rake blades that are sufficiently thin, let alone sharpen the ceramic rake blades. However, the ceramic rake blades that Qin Hai took out really cut the edges, and Hibbs proved the points with the price of blood: first, the blade is thin enough; second, the surface of the blade is very smooth; Third, the material is dense enough that no trace of blood flowing from Hibbs' hands has penetrated the ceramics. Can be seen from the latter two. The Chinese have solved the problem of fine holes after the gel has evaporated.
This disc harrow is a new product developed by Qin Hai under the guidance of Quwu Brothers Ceramics Factory. Its porcelain clay uses nano-sized zirconia powder, and a special gel is added for compacting. Using this gel, combined with a special sintering process, can ensure that the body shrinks when the gel evaporates, thereby eliminating the pores of the gel and obtaining dense and high-strength ceramic products.
Qin Hai spent so much energy developing this new process. Of course not for the production of disc rakes. In fact, it is too extravagant to make disc rakes from nanoscale zirconia. Qin Hai is aiming at a very popular household article in future generations—ceramic knives.
The hardness of zirconia ceramic knife is second only to that of diamond. It can almost never wear in the home environment. It does not need to be sharpened like metal tools. Besides. Ceramic knives are beautiful, easy to clean, and never corrode. When cutting food, they do not produce the smell of ordinary metal knives, which quickly swept the world in the early 21st century.
Last time, Liu Shuo and Huang Yanling went to Qin Hai's house and raised their hopes to enter the civilian ceramics market. Qin Hai had a clever idea and thought of an artifact such as a ceramic knife, and then guided them to make actual samples. In order to be able to borrow such a platform for agricultural machinery exhibitions. He specially asked Liu Shuo to make a few ceramic disc rakes. Although it is a small material, it can be used for advertising and is worth the money.
In the middle, all the twists and turns, Qin Hai naturally would not explain too much to Hibbs. Seeing Hibbs' blood on his hand, he gloated "", and handed the blade to him. staff member. Ask the other party to include it in the test.
"How is this possible?" Hibbs's head was dizzy. He was a little skeptical of what he saw, but the blood in his hand reminded him that it was all true.
"Mr. Qin, are you talking about a product that hasn't tested the durability limit, is this ceramic rake?" Hibbs asked.
Qin Hai nodded and said, "Yes, because of time. We have not been able to complete the test of its durability limit. However, in our test, the same rake blade withstood more than 500 hectares of durability experiments. Knife The body did not show significant wear. "
"It's natural ..." Hibbs murmured. Is the abrasion resistance of ceramic materials comparable to metals? If steel can only wear 100 hectares, it is not surprising that ceramics reach 500 hectares.
"Can you tell me what ceramic is used for this rake?" Hibbs asked again.
"It's zirconium dioxide, and there are some traces," Qin Hai replied lightly.
Qin Hai intends to buy and sell ceramic knives. Therefore, the main material of the knives must not be concealed. Moreover, such things cannot be concealed. Others can just buy a knife and perform a test to analyze it. The real technical secret of ceramic knives lies in the gel and sintering process used by Qin Hai. This is a problem that countless people took 20 years to solve. Qin Hai only crossed this technology by means of crossing such a cheater. threshold.
The gel has evaporated during the sintering process, and others cannot explore its composition from the tool. The sintering process is even more ridiculous. There are millions of ways to combine temperature and time. Unless an industrial spy can be sent for probing, no one can guess it out of thin air.
The durability performance test is done at any time. After Qin Hai sent all the basic parts in, the staff started the equipment and started the test. Although the evaluation standard is the durability of the foundation in soil operations, the real test is not performed on the land, because the experiments of hundreds of hectares are unacceptable, both in time and cost.
The test method used by the organizing committee is to place the base part in a machine to make it rotate at high speed, and then contact it with a friction material to calculate the rate of wear of the base part. Such tests can simulate the effects of hundreds of hectares of farming operations in a relatively short time, and for the sake of intuition, the final test results are also presented in terms of operating area.
The venue of the entire expo is large, but the interpersonal circle is very small. These manufacturers of agricultural machinery have more or less relations with each other. The Chinese brought some special materials and basic technology to produce the basic parts, and said that they could exceed the world's advanced level. Such a news quickly spread throughout the venue. As a result, without waiting for Cui Hongchun to bring the booth out, people came to visit and exchange. You know, the real time is tomorrow.
"Sir, how do you treat the surface of a knife like this?"
"Excuse me, is this a pure ceramic knife? Oh, how do you make ceramics so thin?"
"Can I cut paper with it? Look, it's sharper than a paper knife ..."
"I visited your country three months ago, but at that time we didn't hear anything about these knives. Did you intentionally block the news?"
"I'd like to know, do you need agents in the European market ..."
People of all skin colors gathered around the booth of the Chinese delegation, looking at the various basic pieces on the booth, while holding the Chinese in the booth asking questions. This will embarrass everyone. In this industry, in addition to translation, the total number of English speakers is five, including two high school students, Tranquil and Qin Shan. Compared with those 50-year-old factory directors, Tranquil and Qin Shan belong to the English "super good".
"Little girl, can you help me, what are they talking about?" Zhu Detai, the director of the North Farm Machinery Factory, took Qin Shan to his booth and pointed at two miles. The white man said in a begging tone.
"Uncle Zhu, my English is not good ..." Qin Shan replied anxiously.
Zhu Detai didn't have any elder demeanor, and said deadly, "No matter how bad your English is, it's better than your uncle Zhu ... Well, I knew this already, and I won't show it. Now Uncle Zhu can't help it You must do this to Uncle Zhu anyway. "
"Otherwise, let me try it." Qin Shan was a kind-hearted girl, and she could not bear it when she saw that Zhu Detai was still a pitiful old age. She stepped forward, desperately searching for the English words in her stomach, and communicating with each other. When she didn't understand something, she simply pulled over a piece of paper and asked the other person to write down the words, and then she courageously coped with the scene.
"Uncle Zhu, they said that they are from the United States. Their company name is ... Look, this is the word. I don't know how to translate it. They ask you that these disc rakes you marked are The performance indicators are not real. "After listening to Qin Shan for a while, she began to translate to Zhu Detai.
"YES, YES, what ... Xiao Qin, you tell them that our indicators are true and correct. We have repeatedly tested them in China. The performance is stable and the quality is reliable. Three guarantees are implemented ..." Zhu Detai Could not help but memorize the propaganda in the factory. UU reading book www.uukanshu.com
After Qin Shan listened, she frowned, and then turned her head to explain to the other party. The other party also knows that the Chinese's English level is not high and is not very picky. They nodded while listening, and from time to time helped Qin Shan to correct the words and grammar, which was equivalent to giving Qin Shan a free English tutor.
It took a while to get rid of this, and before Zhu Detai said a word of thanks to Qin Shan, another factory director over there ran over again, holding Qin Shan's hand and shouting: "Little Qin girl Ah, help your uncle. Uncle is in a hurry ... "
Qin Shan couldn't help crying, and quickly responded, "Uncle Zhang, don't worry, I'll come over here .... Uncle Zhu, I'll pass first."
"Hey, Xiao Qin, don't go, I ... oh, Lao Zhang, why are you kidding me!" Zhu Detai scolded angrily. (To be continued. If you like this work, you are welcome to come to the starting point () to vote for recommendations, monthly tickets, your support is my biggest motivation. Mobile phone users please read.)
PS: I recommend the new game "Giants of Game Development" by my friend "Smoke and Rain", returning to 1984, and started developing games. Although it is not the work of the Industrial Party, anyway, it is also an entrepreneurial article. 200,000 words, not counting seedlings, interested students can go and see.