When will I have a long tassel?

Tang Zifeng and Han Weichang waited for two days in Jianhe, and finally heard from Pan Shikai.

After Pan Shikai reported to Zhu Qilin, director of the Xizhong Production Department, Zhu Qilin said that experts from Linyi Machinery could come over and take a look, and at least diagnose the problem with the grinder. Furthermore, if the experts at Linyi Machinery are confident that they can repair the grinder and the cost is reasonable, then it is okay to ask them to repair it.

When it comes to repairing a grinder, there is no need to ask the factory leader for instructions. After Zhu Qilin nodded, Pan Shikai took Tang Zifeng and Han Weichang to their precision machining workshop to inspect the faulty Daos grinder.

In the past two days, Han Weichang had already done a simple science popularization to Tang Zifeng, saying that Linyiji had actually studied Daos grinders, and he was not bragging.

In the past, in order to develop new grinding machines, Linyi Machinery adopted a method of learning from the best of others and purchased several foreign grinders through some channels for dismantling and copy testing. Some expensive grinders Linyi Machinery could not afford, but there were also some who owned such grinders. The company visited and got the basic information about these grinding machines.

At that time, there was a big gap between China's industrial level and Western countries. The materials and processing techniques used in some imported machine tool components were beyond the capabilities of Chinese companies.

To imitate such machine tools, Linyi must find a unique way, and this requires process engineers to come up with creative solutions.

As the deputy chief of the technology section of Linyi Machinery, Han Weichang has put a lot of effort into these aspects, and now it is enough to bluff the people in Xizhong.

This 800mm high-precision cylindrical grinder from Xizhong happens to be one of the imported grinders that Han Weichang has studied. He asked the operator to process several workpieces, looked at the working status of the machine tool, and checked the machining errors of the workpieces, and he already knew it in his mind.

"This should be because the spindle bearing is worn, causing the spindle rotation accuracy to be out of tolerance, the radial clearance to be too large, and the roundness error of the machine to exceed the allowance." Han Weichang said firmly.

Pan Shikai nodded and said: "We also judged this way, but we are not as professional as you and dare not draw conclusions."

Han Weichang said modestly: "Skills have specializations, and we are in this business. We have seen a lot, and some of our judgments are almost the same."

"So, can you fix it?"

"It can be repaired..."

This time, Han Weichang's words were not so refreshing, and he turned his attention to Tang Zifeng.

Tang Zifeng didn't understand what Han Weichang meant, so he asked, "Old Han, what's going on?"

Han Weichang said: "Assistant Tang, the problem with this grinder is the wear of the spindle bearing. The spindle of this grinder is supported by two sets of double-row cylindrical roller bearings and one set of 60-degree angular contact double-row thrust ball bearings. Three sets The bearings are all from Sweden's SKF. The cylindrical grinders produced by our factory also use these types of bearings, so we have these three types of bearings in the warehouse of our factory..."

"Is it original from SKF?" Pan Shikai asked.

Han Weichang said: "Of course they are original. There are also imitations of these three bearings in China, but we have tested that the domestic products are not as rigid and high-speed as the original SKF ones. So when our factory produces precision grinders, we use SKF original bearings.”

"So, if we buy these three sets of bearings from you, how much will it cost?" Pan Shikai asked again.

Han Weichang said: "I don't know the specific price. The total should not exceed 2,000 yuan."

"So expensive!"

"Only 2000!"

Tang Zifeng and Pan Shikai exclaimed at the same time. After speaking, they realized that their words had completely different tastes.

Tang Zifeng had no idea about the price of bearings. He thought they were just accessories found on a scooter. No matter how expensive they were, how could they be worth 2,000 yuan?

But Pan Shikai is just the opposite. He knows that domestic bearings are very cheap, but imported bearings are very expensive.

Xizhong has a lot of imported equipment. In the past, when foreign manufacturers came for maintenance, it was normal to charge one to two thousand dollars for a bearing replacement. Now he needs to replace three sets of bearings. Even if Han Weichang quoted a price of 2,000 US dollars, he would not find it too expensive, but it turned out that Han Weichang said 2,000 yuan.

In fact, this is not surprising. As a machine tool manufacturer, Linyi Machinery purchases bearings directly from SKF, and the batch size is relatively large, so the price is naturally cheaper. Xizhong invites foreign manufacturers to do repairs. Of course, the manufacturers will quote the price of the accessories to the sky. Isn’t this how the profits from repairs come from?

"If the total is 2,000 yuan..." Pan Shikai regained his composure and said: "I'll ask the leader for instructions and see if you can ask your people to bring a few sets of bearings and replace them for us. However, we can't talk ugly. I have to say up front, if you come to help replace the bearings, can you guarantee the machining accuracy and service life of the grinder after the replacement?"

"This can definitely be guaranteed." Han Weichang said, "We have repaired the imported machine tools we use in our factory, and there are no problems after repair. Although we have not repaired your grinder, we have similar models. It has been disassembled, and after being installed, the accuracy and service life will be fine.”

"This..." Pan Shikai was still hesitating. An imported grinder is worth more than 2 million. This is not something Han Weichang can believe just by casually talking about it.

Tang Zifeng looked at Han Weichang and asked, "Old Han, is what you just said the truth?"

Han Weichang grimaced: "Assistant Tang, am I the kind of person who likes to brag?"

"Haha." Tang Zifeng gave Han Weichang a meaningful hehe.

Of course he knew that Han Weichang not only liked to brag, but was also good at telling lies in front of customers, and even told lies in newspapers... This was inevitably due to the influence of Assistant Tang.

The question he just asked Han Weichang was to determine how many ambushes Han Weichang had laid. When he heard Han Weichang's answer, he understood that Han Weichang was indeed telling the truth this time.

Understanding this, Tang Zifeng became confident. He said to Pan Shikai: "Chief Pan, let's sign a maintenance agreement. After we replace you with new bearings, if the accuracy of the grinder cannot reach the original We won’t charge a penny and give you three sets of bearings for free. Within a year, if this grinder breaks down again due to the bearings, or the accuracy drops, we will refund you in full. What do you think?”

"Is that so? Well, let me report it to the leader."

Pan Shikai was tempted, and Tang Zifeng was indeed very sincere in offering such conditions.

From Xizhong's point of view, there is of course a risk in hiring a machine to repair the grinder. If the repair fails, it will inevitably cost more to hire Daos after-sales service to repair it.

However, it is impossible for him to let Linyiji compensate for this part of the cost. They are kind enough to help you and provide three sets of bearings worth 2,000 yuan. It would be too unkind for you to make more demands.

Asking Yiji to help with repairs was also a helpless move for Xizhong. In the beginning, they indeed pinned their hopes of repairing the grinder entirely on the original manufacturer, Dawes Company. However, Dawes Company, perhaps because of its busy business or because it did not like the repair order, gave Xizhong a polite reply. But when it came time to send someone over, they pushed back and forth, never giving an accurate answer.

For this matter, Zhu Qilin also lost his temper in the production department and said that if it didn't work, he would find a domestic manufacturer to repair it until it could be repaired and used for a period of time. Xizhong now has several production tasks that use this 800mm cylindrical grinder. It is really not the right time for it to lie down.

Pan Shikai knew what Zhu Qilin was thinking. Now that Han Weichang said that the Linyi machine had original bearings from SKF and knew how to repair them, he was naturally tempted. The reputation of Linyi Machinery is quite good in the industry. After all, it is from the Eighteen Arhat Factory. Who among the older generation in the machinery industry does not know the famous name of the Eighteen Arhat Factory.

After receiving a call from Pan Shikai from the workshop, Zhu Qilin came over quickly on his bicycle. As soon as he entered the workshop, he ignored the greetings with Tang Zifeng and the others and asked directly: "Can you really repair this cylindrical grinder?"

"Director Zhu, you should believe in the technical level of our Linyi machine." Tang Zifeng said proudly.

"Lingyiji..., um, it was good in the past, but in the past few years..." Zhu Qilin said half of what he said, but swallowed the rest. In any case, the person came to help him repair the grinder. If he said those embarrassing words, he would be too unreasonable and unsophisticated.

"How much will you charge to repair this grinder?" Zhu Qilin asked.

Tang Zifeng looked at Han Weichang, and Han Weichang said with a groan: "This is really not easy to calculate. According to our purchase price for three sets of bearings, plus a handling fee, the price is what it is. I guess it can't exceed 2,000. However, As for the maintenance cost..., we have to send people over and bring tools. This cost..."

"We only charge for materials, and all working hours are free of charge." Tang Zifeng interrupted Han Weichang and said to Zhu Qilin.

"Working hours are free of charge?" Zhu Qilin was startled, "Why is that?... You sent people here, and the transportation expenses are quite high."

Tang Zifeng said: "We bear the transportation expenses ourselves. In terms of working hours, they are all people in our factory anyway. They are paid whether they work or not, so there is no need to collect them. We only have one request. If we can help Xizhong has repaired this grinder. I wish the director could send a message to the factory leaders of Xizhong for us, asking them to consider purchasing the heavy-duty boring and milling machine from Linyi."

"Are you here for re-boring?" Zhu Qilin was a little belatedly aware.

Pan Shikai knew about this, but he did not report it to Zhu Qilin. He only said that someone was on a business trip to Jianhe. He heard that the grinder in Xizhong was broken and was willing to come and take a look. Zhu Qilin felt a little puzzled at the time, wondering why the people at Linyiji were so enthusiastic. Now that he heard about it, he realized that they had ulterior motives.

"The matter of re-boring has been decided in the factory. It would be very difficult to change it," Zhu Qilin said hesitantly.

"Actually, Assistant Tang, if you can help us repair this grinder, we can pay for the transportation and working hours of the maintenance personnel, and we can pay according to the highest domestic standards. You can ask for it, and we will definitely pay it. There will be no counteroffer.”