Now that the cold heading mold was ready, Guo Yonghe no longer wasted time and immediately came to the office of the factory commissioner to find Zhao Hongtao.

"Brother Zhao, I have already opened the cold heading mold here. Now I only need to prepare the raw materials and processing auxiliary materials, and then we can start to use the new process to trial-produce special slender bolt samples!"

He opened a material purchase list to Zhao Hongtao, "These are the raw materials and auxiliary materials required for trial production of samples using the new process. Can you arrange for someone from the company to send them to me first?"

Zhao Hongtao was very happy when he heard that the cold heading mold had been opened. He looked down at the material purchase list given to him by Guo Yonghe and said: "Brother Guo, most of the materials above are easy to describe, but the tetrahydroxyethyl group among them is

Ethylenediamine, alkylphenol polyoxyethylene ether and undecanedioic acid are all relatively unpopular materials. I don’t know if the company’s warehouse still has them in stock, so I have to call to confirm first.”

As he said that, he picked up the phone and dialed the number of the warehouse of the Municipal Wujiao Chemical Company.

Soon, the warehouse gave feedback, including three unpopular materials: tetrahydroxyethylethylenediamine, alkylphenol polyoxyethylene ether and undecanedioic acid. The list of materials listed by Guo Yonghe

All raw material warehouses above have stocks.

Zhao Hongtao breathed a sigh of relief and asked the warehouse to immediately send all the above materials to the internal assembly plant in accordance with the quantities listed on the material purchase order.

Although the amount of materials Guo Yonghe purchased was not large, since there were more than 30 types in total, it was already time to get off work at noon by the time Wujiao Chemical Company delivered the materials.

Guo Yonghe went to You Quanxi to ask for the key to the trial production workshop of the Biotechnology Department, and asked the deliveryman from Wujiao Chemical Company to unload all the materials directly to the trial production workshop. Then he took advantage of the unoccupied time in the trial production workshop at noon.

, prepare the composite phosphating liquid and lubricant, and then cut the three 6.5 mm high-grade chromium-molybdenum nitride alloy steel rods sent by Wujiao Chemical Company into 125 mm long short rods on the lathe, and put them all in

Phosphating treatment was carried out in the compound phosphating liquid tank, and then he returned to the office of the resident commissioner and went out to eat with Zhao Hongtao who was waiting there.

After a leisurely meal with Zhao Hongtao, it was already half past two in the afternoon, which happened to be work time, so Guo Yonghe took Zhao Hongtao to the trial production workshop.

After arriving at the trial production workshop, Guo Yonghe found that Zhai Yuqiang was also waiting at the door of the workshop, and he couldn't help laughing for a moment.

"Chief Zhai, what are you doing here?" he asked.

"Comrade Xiao Guo,"

Zhai Yuqiang said with a shy smile: "I thought you were going to use a new process to trial-produce special slender bolt samples this afternoon? So I shamelessly came over to learn from the advanced experience!"

Zhai Yuqiang has said this, so what can Guo Yonghe do? Can he still drive Zhai Yuqiang away?

Fortunately, Zhai Yuqiang was no longer around when he was preparing the compound phosphating solution and lubricant at noon, so there was no risk of leaks. There was nothing to keep secret about the subsequent cold heading manufacturing process.

"Chief Zhai, as long as you are not afraid of Director Luo criticizing you for not doing your job properly, you can watch whatever you want!"

Guo Yonghe smiled and stepped to the front of the composite phosphating liquid tank. He used a tool to pick up a high-grade nitrided alloy short rod from the composite phosphating liquid tank. He checked the phosphating effect and found that the process requirements had been met.

.

So I went to the cold heading machine tool in the trial production center, installed the opened cold heading mold, and then soaked the phosphated high-grade nitride alloy short rod in lubricant and put it into the mold.

, when the cold heading machine was started, a "clang" sound was heard. In just a few seconds, the high-grade nitride alloy short rod turned into a special slender bolt with a standard shape.

Before Guo Yonghe could take action, Zhai Yuqiang had already picked up a vernier caliper and measured this special slender bolt.

"How's it going, Chief Zhai, how's it going?"

Zhao Hongtao stretched his neck and asked Zhai Yuqiang for the measurement results.

"Commissioner Zhao, from the perspective of processing accuracy, there is nothing wrong with the sample. All data not only meet the standards, but also reach the level of high-quality products!"

After Zhai Yuqiang measured all the parameters, he was very happy and said: "It depends on the subsequent failure tensile test. If it can meet the requirements, then Xiao Guo's new process will have no problem at all!"

"Then what are you waiting for? Hurry up and conduct the destructive tensile test!"

Zhao Hongtao said impatiently.

This matter was related to whether he could successfully climb to the position of deputy section chief of the company's purchasing department, so he couldn't help but be impatient.

"Haha, Brother Zhao, don't worry yet."

Guo Yonghe said with a smile: "After I have processed the remaining special slender bolts, it will not be too late to ask Section Chief Zhai to do the failure tensile test!"

As he spoke, Guo Yonghe fished out the remaining seventeen high-grade chromium-molybdenum nitride alloy steel short rods from the composite phosphating solution tank, put them into the lubricant tank, lubricated them once, and immediately started the cold heading machine.

Processed.

Just listen to the cold heading machine making a series of "clang, clang, clang, clang" sounds. In less than seven or eight minutes, seventeen high-grade chromium-molybdenum nitride alloy steel short rods have turned into seventeen special slender bolts and fell.

In the finished workpiece frame under the cold heading machine.

Zhai Yuqiang picked up the vernier caliper again and measured all seventeen special slender bolts. As a result, all bolts met the standard of high-quality products.

"Brother Guo,"

When Zhao Hongtao heard the test data reported by Zhai Yuqiang, he urged from the side, "Can we go for the destructive tensile test now?"

"Well, that's it, let's go ahead!"

Guo Yonghe nodded and said.

So Zhao Hongtao personally carried the finished frame of the workpiece and followed Zhai Yuqiang and Guo Yonghe to the high-strength bolt tensile failure testing machine in the Biotechnology Experiment Center.

Zhai Yuqiang casually took a special slender bolt from the finished workpiece frame, put it into the tensile failure testing machine, and then pressed the switch to start the tensile failure testing machine.

The numbers on the tensile force data display on the tensile failure testing machine kept increasing. This special slender bolt remained motionless at first, and then slowly began to deform until the number on the data display rose to 2280 kilograms of force.

This special slender bolt was pulled into two pieces with a click.

"The effect is great!"

Zhao Hongtao and Zhai Yuqiang let out an exclamation at the same time.

You should know that the special slender bolts produced by the old process used by the internal parts factory had a maximum value of only 2210 kilograms in the breaking tensile test. But now the special slender bolts produced by Guo Yonghe's new process are the first

The product's breaking tensile test data broke the highest record of old craft products in one fell swoop, reaching 2280 kilograms of force. Isn't this effect too shocking?


Chapter completed!