Chapter 50:

"This is a special bearing. Ross ... have you made a mistake?"
Tan Lin couldn't help but suspect Rose and dealt with bearings all the year round. It can be said that the bearings are good or bad, as long as Tan Lin can look at it, he can tell.
黑 The dark, rough thing in front of him is really different from the special bearing he imagined.
Among the three old stubborn, the fat old Yang has sympathized with Tan Lin.
"Oh! Tan Lin! I reminded you well in the beginning, don't cooperate with this little liar, you don't believe me. What about now? I've been scammed, are you comfortable? Ten million funds hit the water, you are comfortable What? People bluff you with something that you don't even need to collect, and say that it is a special bearing, and the joke is dead. "
"This kid is so hateful, Tan Lin, if you are smart, go get the contract, sue this little thing, send this kid scammer into the cell and let him sit through. The contract he signed with you said yes It's special steel, it's not junk. "
"Oh! Tan Lin, this time you can only admit planting, even if you send this little liar to the cell, you will not come back for ten million."
The three old men have claimed to be experts. They have identified that the bearing of Ross is broken, and the proud and cold-blooded, look down on Rose's attitude, killing Tan Li, who has been silent, can't help but speak.
"Three grandpas, I have always respected you since I was a kid. But you really look down on Rose. Why do you always think that he is a liar? And you are worried about Rose's lie to my dad's 10 million. Don't forget, Rose depends on The heating rod, just by making the military order, made more than 10 million. Even without my dad, this special steel and special bearings can be made by Ross. He only proposed to thank our Tan family. Let my dad invest 10 million to develop special steel technology. He succeeded, you look away. "
我们 "Let's see? Lili, have you hit the kid's evil! This is obviously a broken bearing."
Old stubbornness is old stubbornness. They think it is wrong, then it must be wrong. They think they are absolute authority.
Ross sneered: "I can also be regarded as serving your three stubborn old men. This bearing was manually made by me. It is naturally ugly to sell. But in terms of performance, the world cannot find the second one. Uncle Tan, you Ignore the three old guys, if you take this bearing to test the performance, you know that it is right or wrong. "
"Well, I'll take it for a test." Tan Lin took the bearing to the company's test room with suspicion.
三个 The three old men seemed to want to see Rose's joke, and they followed.
In the test room, Tan Lin himself performed performance tests on the bearings.
The first thing Tan Lin did for bearings was the ‘contact fatigue resistance’ test.
Bearing under the contact of cyclic load, the bearing will easily be damaged due to contact with the external surface, and cracking and peeling will occur, which will affect the bearing life.
A high-speed rotating machine sets the bearing and rotates at a high speed of 90,000 times per minute. One end of the machine has a gravity hammer. After adjusting the speed, it will continuously hit the surface of the bearing with minimal force to test the bearing. How strong is the fatigue resistance.
For the first test, it took a full test for 1 hour. The speed of this test machine was adjusted to the limit, and the speed of the hammer hitting the bearing was also adjusted to the limit. Even the best-performing Z-class bearings are also top Can withstand 50 minutes of fatigue test.
But these ugly bearings made by Rose have been tested for overload, and there is still no surface cracking or peeling.
The wear resistance of these bearings has exceeded the limits of all bearings.
Tan Lin was instantly excited: "This is the best bearing I have ever seen. Judging from the wear test, the life of this bearing will be twice or even longer than the existing bearing."
The three old men were also taken aback by the abrasion resistance. The fat old man still couldn't believe the test results and hummed unhappy: "What is the use of the bearing surface for abrasion resistance. The key has to look at the inner channel and the ball How strong the vibration speed can be, and the hardness of the bearing is also the most critical. "
Rose ignored the three old men, and said to Tan Lin as plainly as water, "Uncle Tan, you can do the‘ Vibration Acceleration Standard Test ’.

"I try." Tan Lin was already very excited.
Now the bearing is sleeved on another test machine again, this test machine is doing ‘Vibration Standard Test’. It is used to test the bearing performance at high frequency, intermediate frequency, low frequency, and vibration speed.
The testing machine started to rotate at high speed again. While rotating, the machine was also vibrating at high speed with various frequencies.
This test will fully test the capabilities of all parts inside the bearing. Poor quality bearings, in this test, will appear deformation of the inner ring, or peeling off the ball, or fracture.
半 It was another half an hour later, 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 seeing the performance of the bearing, Tan Lin was so excited that his eyes turned red and he could not help crying.
"Great, the quality of bearings is divided into V, V1, V2, V3, V4. Bearing quality reaching V4 means the highest standard. If the quality of these bearings by Ross is divided into V grade, At least it has reached V6, far exceeding international standards. There is no doubt that this is a special bearing. Ross, you are great. "
The three old men who did not believe that Rose could make a special bearing. After seeing these sexual tests, their faces suddenly changed, but they still did not give up.
王 The old man hummed sourly: "Before passing the hardness test, this bearing is still a waste."
Tan Lin almost couldn't help but wanted to refute these old men. Because of his seniority, Tan Lin was not easy to get angry. Now he gave the bearing to this old Wang: "Uncle Wang, let's do the hardness test. Avoid others testing You don't believe it. "
"Try it, I don't believe in something that the country can't get out of, this kid can make it out."
After the old man took the bearing, he took the bearing to another testing machine ~ EbookFREE.me ~ This testing machine is to test the hardness of the bearing.
The machine rotates again at high speed with the bearing, and the diamond at the other end of the machine presses the hard hammer to hit various parts of the bearing at different speeds and forces.
General 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 damage. The old man did not give up, and adjusted the speed of the machine and the force of the hammer.
Test again, the hardness of the bearing reached 70HRC, which has been considered to exceed national standards.
"How can it be so hard ... Is it really a bearing made of special steel, this hardness is too strong."
The hearts of the three old men were very cold and guilty, and their faces became ugly.
Looking at the dying expressions of the three old men, Neros was so happy in his heart that he decided to give them a thorough blow. Ross walked to the test machine and pushed away the fat old man: "Don't fret, just set the speed to the highest and the intensity to the maximum."
Rose directly adjusted the test machine's ability to the strongest.
In the limit of the testing machine, the upper hardness indicator, the pointer jumped to the highest, and then did not move.
"Ah! The watch is bursting. The hardness of this bearing exceeds HRC85. Only Rockwell hardness can measure his hardness. This is really a special bearing."
I was about to spit out old blood, and the old man Yang who was standing in front of the test machine was strongly stimulated, and his blood pressure suddenly increased. He was already fat and fainted. The remaining two old stubborn, silly standing on the ground, with red and green on their faces, I do n’t know if they want to cry or laugh ~ EbookFREE.me ~ Welcome the book readers to read the latest, fastest and hottest The serial works are all at ~ EbookFREE.me ~ Please read for mobile users.