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Without waiting for Peng Huading to say thank you, Wang Lu said: "The set of gears of the French VoRou company is a lot of trouble, only the dimensions and related technical parameters meet the requirements, but they must meet the requirements in mechanical properties and service life." The sample must be submitted to France, handed over to them for strict testing and qualified, they will place an order for you, they can guarantee their order is not less than 200 sets. By the way, their unit price is very high, up to 15,000 yuan per set.

Our company has found several machinery companies to try production, but all of them failed because of unqualified mechanical property indicators. Now our company has basically given up this order, if you can make it, you can directly sign an import and export contract with the French company, or you can use us as an agent, we only charge 10% of the handling fee, including the cost of round-trip transportation. ”

Listening to her words, Peng Huading was moved: a pair of hydraulic pump gears is only more than 120 yuan, and the price of this set of French gears is more than 100 times that of it, what a fat sheep!

Seeing his demeanor, Wang Lu pursed his lips and said with a smile: "The order for hydraulic gears is long-term, if your product quality is good and the delivery is timely, you will have a stable way to make money, and I can also persuade the leader to transfer the orders to others to you in the future." ......, you don't have to rush now, first slowly find a manufacturer who can help you process, and after you make money, you can resign from Huakang Company and set up your own company, not only to undertake all this order, but also to slowly take other orders. And that set of French gears is much more difficult to process, even if you try hard, you may not be able to make it. I advise you not to put too much thought into that set of French gears, which are more profitable but more risky. ”

As she spoke, she smiled self-deprecatingly and asked, "Do you think I'm verbose?" ”

Peng Huading hurriedly said: "No, it's too late for me to be grateful." ”

Wang Lu glanced at him and said, "It's good to know." ......, you open them and look at them, if you have any questions, you can ask me now, I can answer them immediately, and if I can't answer them, I can ask our company's experts. ”

Peng Huading bent down and picked up the carton from the ground and put it on the coffee table, then tore open the sticker, took out an oiled paper bag from it, and opened it to see that it was covered with a gear slightly larger than a palm.

He took it in his hand and just glanced at it, and couldn't help but sigh in his mouth.

Wang Lu asked, "What's wrong?" ”

Peng Huading said: "Why do the French want such high-precision bare base gears? ”

Wang Lu was stunned for a moment and asked, "What bare base gear, why haven't I heard of this word?" What does bare base mean? ”

Peng Huading asked a little weakly: "Haven't you heard of the word naked base?" That is, the teeth of the gear are made of the same metal or alloy from the inside out. ”

Wang Lu thought for a while, shook his head in confusion, and then said, "No, I have never heard of it. ......, besides, the gears are like this now, is there a gear with several metals or alloys? Don't fool me, I'm not a layman, I studied engineering in college, I came out to do business for many years, and I often come into contact with gears, although I am not an expert in gears, but the general technicians in the factory may not be as high as my level. ”

Peng Huading chuckled in his heart: the word dare has not yet become popular in the industry, but it was said by himself in advance.

This can't be blamed on him, because he didn't know anything about gears before, didn't know the current terminology and technical level in the field of electromechanical, and could only speak with future knowledge, and didn't notice whether the word "bare base" existed in reality.

He warned himself to read more technical books in the field of electromechanical in the future, and tried not to say "layman's" words, and explained in his mouth: "I mean why there is no layer of alloy on the surface of the gear teeth, I heard my teacher say that coating alloy on the surface of gears, bearings, shafts and other moving parts is the latest technology in the world, since the French require high-end gears, they should consider using this technology." ”

After explaining to himself in a casual way, he took the gear and said, "The pressure angle of this gear is only 13.5 degrees, which shows that the bending strength and contact strength required for the gear to mesh are not large. However, the tooth width coefficient is larger than the normal value, indicating that the load is very large, and the selection of the two parameters contradicts each other, and even goes to the extreme. The material is 42 chromium-manganese alloy gear steel, which has high creep strength and long-lasting strength at high temperatures......"

When Wang Lu started, especially when Peng Huading said the word "bare base", she thought he was pretending and didn't understand the gear at all, at most she knew a little about it, but as he took the gear and told the story, she was stunned: "Just look at it like this to know its parameters and characteristics?" It's hard for ordinary experts to do that, right? Didn't he study computer applications? Could it be that he can reach such a high level by self-study, far better than me, an engineering graduate, or even an expert in our company? ”

At this time, Peng Huading said: "If these parameters of the gear are carefully selected by the designer, and the selection is completely based on the actual working environment of the gear in the future, then the gear is absolutely unqualified." Not only is the hardness of the gear teeth not enough, but the yield strength is also not enough.

Even if the manufacturer has carried out scientific heat treatment on the gear before leaving the factory, the internal microscopic mechanism has been fully refined, the martensitic and austenite distribution is appropriate, and the hardness and yield strength are qualified, but because of the high working environment temperature of the gear, the relevant technical indicators will slowly deteriorate, and the guide gear cannot work for a long time, and it has to be replaced after about 300 hours of continuous work. ”

Wang Lu's eyes widened, and he blurted out: "Have you seen our test report and the conclusion of the French manufacturer before?" ”

Peng Huading asked rhetorically: "How is it possible?" ”

Wang Lu said: "Then how do you know that these gears are up to standard before they go abroad, and how do you know that this gear can only work for less than 300 hours?" It's amazing! ”

Peng Huading said with a smile: "I said that I have this ability, do you believe it?" ”

Wang Lu was full of confidence in Peng Huading at this time, and hurriedly pointed to the carton and said: "You take out the technical drawings and materials inside, and see if you can make qualified gears?" ”

Peng Huading took out the technical drawings and technical parameters corresponding to the gears in his hand, looked at them carefully, and said in his heart: No wonder they are designed strangely, it turns out that they have adopted this stupid method to solve the harsh environmental conditions.

He had seven or eight ways to process and produce gears that met the requirements in an instant, but he didn't say it immediately, because he was worried that the methods he thought of might not be able to be put into action, and it was likely that he could not find the corresponding processing equipment in this era, and it was very likely that he could not find the corresponding materials on the market, and even the words he said would reveal his secrets because his concept was too advanced, just like he said the word "bare base" just now that Wang Lu was surprised.

He thought for a moment and said to Wang Lu: "Difficult! ”

How did Wang Lu think that Peng Huading was lying? She said: "Of course it is difficult, if it is easy, this order will not be able to find a processing manufacturer until now?" ......, you saw so many problems just now, you must have a little idea, right? ”

Peng Huading said with a smile: "I don't have too many ideas myself, but I know that if I follow the processing method and heat treatment method of this gear in my hand, I will waste as much as I want." ”

Wang Lu didn't believe that he had no way to say what he had just said, so he said, "I don't steal your skills, so I don't need to keep it so secret, right?" If you tell me the truth, are you sure at all? ”

Peng Huading said: "Even if I have a way, I can't do it." ”

Wang Lu's eyes lit up and said: "I can ask the manufacturer who processes this gear to pay you or your teacher to guide them and let them do it, and you charge a technical guidance fee." ”