When will I have a long tassel?

"According to the process designed by the technical department, one furnace of molten iron can only pour three castings. There is still some molten iron left, but not enough for the fourth one. If we can reduce the riser a little, the saved molten iron will be just enough to pour the fourth one. Four castings. In this way, the utilization efficiency of the electric furnace can be increased by 1/3."

"But the original riser design was used to compensate for shrinkage defects. If the riser is reduced, the shrinkage defects will become larger, and the quality of the castings cannot be guaranteed."

"I have an idea. Look, the process requirements say that the top load of this casting is heavy, and the structure is required to be dense without pores or shrinkage holes. But the load at the bottom is small, and the quality requirements are not so high. If we pour the sand mold Come here and reduce the riser size so that even if some shrinkage cavities occur, they will be at the bottom and will not affect the quality of the top. Wouldn’t that solve the problem?”

"I think it will work. After the sand mold is turned upside down, several lower risers can be set up underneath to carry out lower layer feeding. The quality should be better than the original process."

"Well, come to think of it, this method was proposed by Master Zhang back then. Lao Hou, do you still remember it?"

"Why don't you remember? It was Lao Guan who took us to discuss it together. Alas, it has been 10 years since Master Zhang left. If he is still here..."

"I'm going too far... I'm looking at this design on the drawing. Can the cold iron be enlarged a little..."

"You can add a gate..."

"We should pay attention to the issue of exhaust. The lower box should be padded to facilitate exhaust..."

"..."

Two old foundry workers had an on-site discussion with the process engineer sent by the technical department, and Guan Zhiming also participated.

Several people each took a pencil and wrote and drew on the drawings, chatting lively.

Tang Zifeng stood aside, completely confused, not knowing what these people meant. All I know is that judging from the looks on their faces, the discussion should be productive.

The two retired workers looked quite confident, and the two process engineers showed expressions of "how can this be done" from time to time, obviously getting valuable inspiration from Hou Zhensheng and the others.

"Gong Li and Chen, are there any problems in adjusting the process according to this idea?"

After the discussion came to an end, Guan Zhiming asked the two process engineers.

"It should be no problem, but we have to go back and calculate some details again." Engineer surnamed Chen replied.

"It's four o'clock in the afternoon. Can we design a new process before eight o'clock in the evening?" Guan Zhiming asked.

"This..." The two engineers' faces showed some embarrassment.

Guan Zhiming glanced at Tang Zifeng, and Tang Zifeng knew it was time for him to play his role. He took a step forward and said to the two engineers: "You must complete the new process design before eight o'clock in the evening. If you have any difficulties, you can go directly to Chief Engineer Qin and Director Sun to solve them. I don't understand what's technically wrong. It’s difficult, but I’ll just say one thing, if it can’t be completed by then, I will report it to Director Zhou.”

"Uh... Okay, let's do our best." The two engineers responded helplessly.

"It's not about trying your best, it's about having to!" Tang Zifeng said with a calm face and an unquestionable tone.

The two engineers rushed back to do design work. Guan Zhiming waved to Rao Shutian, who was standing not far away. Rao Shutian took two steps and came to them. He asked with a smile: "Old Guan, what's the matter?"

"Where did the small electric furnace in the foundry workshop go?" Guan Zhiming asked.

Rao Shutian was stunned for a moment and asked: "You mean, that power frequency electric furnace? After it was dismantled last time, it was sent to the warehouse. It's been seven or eight years now, and I don't know if it's still there. What, old man? Guan, you want to use that electric stove again?"

Guan Zhiming said: "An extra electric furnace can speed up the speed a little. When that electric furnace was dismantled, I remember it was still usable. You should have someone go to the warehouse to have a look immediately. If it is still there, reinstall it. , its efficiency is slightly worse than the current medium frequency electric furnace, but it’s still better than nothing?”

"But this is too much trouble..." Rao Shutian complained.

"What's going on?" Tang Zifeng asked from the side.

Rao Shutian said with a bitter face: "What the old manager just said was an old electric furnace that used to be in our workshop. It has been dismantled for seven or eight years, and I don't know if it is still there. If you want to reinstall it, it will take at least three or four years of work." It’s not worth the time.”

Guan Zhiming sneered and said: "Why is it not worth it? If this electric furnace can be used, you can increase your production capacity by at least 1/4. Coupled with the process optimization ideas I just discussed with Lao Hou and the others, you can If you can complete the task of 43 sets of castings in one month, you will be almost certain. What's the problem with having a few people toss around for three or four days to achieve this goal?"

"When we are so busy now..."

"Old Rao, just do what I want." Tang Zifeng patted Rao Shutian on the shoulder and said, "You won't be in vain. After this batch of business is completed, I estimate there will be another batch, maybe 50 If you increase the production capacity to 100 units or even 100 units, you won’t go wrong.”

"Okay, I'll arrange for someone to do it right away." Rao Shutian also gave in.

He didn't need to care about Guan Zhiming's request, but he didn't dare to compete with Tang Zifeng. Zhou Heng sent Tang Zifeng to follow Guan Zhiming, not just as a decoration. Tang Zifeng's words were equivalent to Zhou Heng's words. Rao Shutian didn't have the courage to confront Zhou Heng.

Guan Zhiming explained several other things, and Rao Shutian wrote them down one by one and promised to implement them immediately.

Guan Zhiming then turned to Tang Zifeng and said: "The things in the casting workshop are almost done. Let's take a look at the new process design when the technology department sends it in the evening. Now let's go to the lathe workshop first."

"It's up to you." Tang Zifeng responded with a smile.

On the way from the foundry workshop to the lathe workshop, Tang Zifeng asked Guan Zhiming: "Old Guan, I just heard you discussing craftsmanship, and I didn't understand a word. Why, have you ever been a foundry worker, right? How come casting is so familiar?”

Guan Zhiming said: "When I was a worker, I worked as a lathe, miller and fitter, but I never did casting. However, later when I became the production director, and then the deputy director of production, I had to be exposed to all these types of work. . How can we manage production well if we don’t understand the conditions of each type of work?”

"But, I think you seem to be very professional." Tang Zifeng said.

Guan Zhiming smiled and said: "How can I look professional? Let's just say that we were discussing the casting process just now. The core ideas were put forward by Lao Hou, Master Qi, Gong Li, and Gong Chen. I just started to make noises along with them. .

In fact, there is nothing difficult about industrial technology. You can learn all these things as long as you really put your mind to it. Look at Lao Hou, he has only been in elementary school for a few years, and has never even been to junior high school. What he can understand, you, a top student who graduated from a prestigious university, can't understand? "

"It's not that easy, right? When I entered the workshop, my eyes went dark and I couldn't understand anything." Tang Zifeng said hesitantly.

"It all depends on people. The key is whether you want to learn or not. If you want to learn, it will be easy." Guan Zhiming said, "In the past, there were many college students assigned to Linyiji, and there were also some cadres with very high academic qualifications in the ministries and provinces. , but they often don’t even understand what casting is. In the final analysis, they despise industrial production from the bottom of their hearts and feel that this thing is not worth their brains.

"There are also some people who have a background in engineering and have good technical skills. But if you want them to squat together with old workers like Lao Hou to discuss craftsmanship, he won't be happy. He feels that the workers are too rustic and not worthy of being with them. These intellectuals sit together.

"But you also saw just now that the process ideas proposed by Lao Hou and the others are more ingenious than the engineers in the process department. This is called practice. True knowledge comes from practice. Just talk about how many castings can be poured into one furnace of molten iron. Calculations on paper It's one thing, but the actual operation is another. Others can only pour three castings in one furnace, but Lao Hou can pour four. Doesn't this increase efficiency?"

"I've learned a lesson." Tang Zifeng bowed his hand to Guan Zhiming. I won’t say what this person’s character is, but I won’t say what his abilities are. Few people who can hold the position of deputy director of production for so many years are mediocre.

When he came to the lathe workshop, Guan Zhiming still had the same working methods. He found some experienced old workers, took the process documents compiled by the process department, discussed them one by one, and determined the ideas for process optimization. The Technical Department has sent two additional process engineers over. They are obviously familiar with Guan Zhiming's work style, and they also participated in the process and started a lively discussion with everyone.

There are many process solutions for processing a part, such as whether to turn the inner hole first or the outer circle first, how to choose the angle and speed of the tool head during turning, and what kind of fixture to use for the workpiece. Each combination can form a process. plan. The determination of the process plan must not only take into account the processing requirements of the parts, but also what equipment is in the workshop, the technical level of the workers, cost requirements, etc., which is equivalent to solving a planning problem with dozens of constraints.

Neither Guan Zhiming nor the workers have the ability to solve such complex equations. In fact, they do not understand what linear programming is at all.

But they have rich experience and can instinctively judge which process choice is the best and which link can save how much time. By rationally allocating tasks and tailoring process plans according to the technical level of each worker, Guan Zhiming saves processing time almost minute by minute, so that the workshop can complete this inexhaustible task within the specified construction period. Possible tasks.

Production management is indeed a university subject. Tang Zifeng squatted aside and watched Guan Zhiming scolding Fang Qiu, feeling very emotional in his heart. This kind of corporate management talent that has been developed through years of production practice is also a valuable asset, but it is a pity...