Born Tech Mad

"It's a special bearing. Ross... have you made a mistake?"

Tan Lin couldn't help but doubt Ross. He has dealt with bearings all year round. It can be said that Tan Lin can tell whether a bearing is good or not just by looking at it.

The dark, rough thing in front of him was really different from the special bearing he had imagined.

Among the three stubborn old men, the chubby old man Yang had already sympathized with Tan Lin.

"Hey! Tan Lin! At the beginning, I kindly reminded you not to cooperate with this little liar. You didn't believe me. How is it now? I was cheated, are you comfortable? You are comfortable with 10 million funds in vain. Is it? They will bully you with something that you don’t even need to collect junk, saying it’s a special bearing, it’s a deadly joke.”

"This kid is too hateful, Tan Lin, if you are smart, hurry up and get the contract, sue this little thing, send this kid and liar to the cell, and let him sit in prison. The contract he signed with you, agreed It’s about special steel, not this junk.”

"Hey! Tan Lin, this time you have to admit it. Even if you send this little liar to prison, your ten million won't come back."

The three old men have proclaimed themselves experts. They have identified that Ross's bearing is broken. The arrogant and cold attitude of looking down on Ross even if killed made Tan Li, who had been silent all this time, couldn't help but speak.

"Three grandpas, I have respected you since I was a child. But you really underestimated Ross. Why do you always think he is a liar? You are still worried that Ross cheated my dad of ten million. Don't forget, Ross relies on For heating rods, he earned more than 10 million yuan just by making the military order. Even without my dad, Ross can make this special steel and special bearings. He only proposed it to thank our Tan family. Ask my dad to invest 10 million yuan in the development of special steel technology. He succeeded, you are mistaken."

"Did we miss it? Lili, have you fallen for this kid's evil? This is obviously a broken bearing."

Old stubbornness is old stubbornness. If they think they are wrong, they must be wrong. They think they are the absolute authority.

Ross sneered and said, "I have convinced you three stubborn old men. I made this bearing manually, so it looks ugly. But in terms of performance, the whole world can't find the second one. Uncle Tan, you Don’t worry about the three old guys, take this bearing to test its performance, and you’ll know if it’s right or wrong.”

"Okay, I'll take it for a test." With a skeptical attitude, Tan Lin took the bearing to the company's testing room.

The three old men seemed to want to see Ross's joke very much, so they followed suit.

In the testing room, Tan Lin personally tested the performance of the bearings.

The first thing Tan Lin did for the bearing was the 'contact fatigue resistance' test.

Under the contact of cyclic load, the bearing will easily be fatigued and damaged when it contacts the surface, and cracks and peeling will appear, which will affect the life of the bearing.

After a high-speed rotating machine is put on the bearing, it rotates at a high speed of 90,000 times per minute. At one end of the machine, there is a gravity hammer. After adjusting the speed, it will continuously tap the surface of the bearing with the smallest force to test the bearing. How strong is the fatigue resistance.

This first test lasted for a full hour. The speed of the test machine was adjusted to the limit, and the speed of the gravity hammer hitting the bearing was also adjusted to the limit. Even ordinary bearings, even the Z-grade bearings with the best performance, are at the top. More than 50 minutes of fatigue resistance test.

However, these ugly bearings produced by Ross have been subjected to overload tests, and there is still no surface cracking or peeling.

The wear resistance of these bearings has exceeded the limit of all bearings.

Tan Lin was extremely excited in an instant: "This is the best bearing I have ever seen. Judging by the wear resistance test, the life of this kind of bearing will be twice the life of the existing bearing, or even longer."

The three old men were also taken aback by the wear resistance. The fat old man still couldn't believe the test results, and hummed unhappily: "What's the use of wear resistance on the surface of the bearing. The key is to look at the inner raceway and the ball bearings. How strong the vibration speed can be withstood, and the hardness of the bearing are also the most critical."

Ross ignored the three old men, and said to Tan Lin as calmly as water: "Uncle Tan, you can continue to do the 'vibration acceleration standard test'."

"I'll try." Tan Lin was extremely excited.

At the moment, the bearing is placed on another testing machine again, and this testing machine is doing the 'vibration standard test'. It is used to detect the performance of the bearing at high frequency, medium frequency, low frequency, vibration section speed.

The testing machine started to rotate at high speed again. While rotating, the machine was vibrating at various frequencies at high speed.

This test will completely test the ability of all parts inside the bearing. Poor quality bearings, in this test, will show deformation of the inner ring, or the balls will peel off, or break.

Another half an hour passed, and the machine was adjusted to the limit again. The bearing began to heat up slightly under the test, but there was no abnormal phenomenon, and the parts inside the bearing were intact.

After Tan Lin saw the performance of the bearing, his eyes were red with excitement, and he couldn't help crying.

"It's great. The quality of the bearings is divided into V, V1, V2, V3, and V4. The quality of bearings reaching V4 means the highest standard. If the quality of these bearings made by Ross is classified according to V level, At least it has reached V6, far exceeding international standards. There is no doubt that this is really a special bearing. Ross, you are amazing."

The three old men who didn't believe that Ross could produce special bearings, after seeing these sex tests, suddenly changed their faces, but they still didn't give up.

The old man Wang snorted sourly: "Before it passes the hardness test, this bearing is still a waste."

Tan Lin almost couldn't help it, and wanted to refute these old men. Because of his seniority, Tan Lin couldn't get angry, so he handed over the bearing to this old man Wang: "Uncle Wang, you can do the hardness test. Don't let others test it. You don't even believe it."

"Just try it. I don't believe that this kid can make something that the country can't make."

After Old Man Wang took over the bearing, he took the bearing to another testing machine. This testing machine was used to test the hardness of the bearing.

The machine rotates at a high speed again with the bearing, and the diamond hardened hammer at the other end of the machine hits various parts of the bearing at different speeds and forces.

Generally, the bearing hardness reaches 61 to 65HRC, which can be qualified.

After a few minutes of testing, the hardness of the bearing reached 65HRC, and there was still no sign of damage. Old man Wang did not give up and adjusted the speed of the machine and the strength of the hammer.

Tested again, the hardness of the bearing has reached 70HRC, which is considered to be beyond the national standard.

"How can it be so hard...Could it be that this is really a bearing made of special steel, which is too hard."

The three old men's hearts were filled with coldness, their hearts were filled with guilt, and their faces became extremely ugly.

Ross looked at the expressions of the three old men who were about to die, and felt really happy in his heart. He decided to give them a complete blow. Ross walked to the test machine and pushed the fat old man away: "Don't babble, just adjust the speed to the highest and the strength to the maximum."

Ross directly adjusted the ability of the test machine to the strongest.

In the limit of the testing machine, the upper hardness display gauge, the pointer jumped to the highest, and then did not move.

"Ah! It broke the watch. The hardness of this bearing exceeds HRC85. Only a more advanced Rockwell hardness testing instrument can measure the hardness. This is really a special bearing."

About to spurt a mouthful of old blood, old man Yang, who was standing in front of the test machine, suddenly had a blood pressure rise after being strongly stimulated, and he, who was already fat, fainted. The remaining two old stubborn stood on the ground stupidly, their faces turned red and green, and they didn't know whether they wanted to cry or laugh.