Siheyuan: I am different He Yuzhu
Chapter 337 Thermos Flask
After drawing the internal structure diagram, He Yuzhu took the finished design to the technical department. Zhang Wanshun from the technical department saw He Yuzhu coming and quickly stood up from his seat and said enthusiastically: "Director He, why are you here? If there is anything, please ask Deputy Director Fan to notify me and I will go to your office."
He Yuzhu smiled and replied, "It would be easier for me to ask Deputy Director Fan to come and call you, and then wait for you to come over. Besides, my office is not far from your technical department. Chief Zhang, please take a look at the drawings I drew first to see if our factory has the ability to produce what I drew." After that, he handed the design drawing to Zhang Wanshun.
Zhang Wanshun took the blueprint and looked at it attentively. He studied every detail carefully, sometimes frowning in thought, sometimes nodding in approval. After a while, he looked up, looked at He Yuzhu and said, "Director He, if I am not mistaken, the thing you drew on the blueprint should be a thermos similar to a thermos. Our factory can produce this thing, but it is not possible if we want to mass-produce it. This requires more equipment and manpower. Moreover, although this product looks simple in appearance, the manufacturing process is relatively complicated and requires some time to explore and optimize. But if it is just a small-scale production, just find a worker with better skills to produce it."
Hearing Zhang Wanshun's answer, He Yuzhu nodded to show his understanding. He knew that there were still many difficulties to overcome in order to achieve large-scale production, but at least it was confirmed that the factory had the production capacity. As long as we could make sure that we could produce samples, we could participate in the export commodity fair and wait until there were real customers placing orders before studying how to solve the problem of mass production.
He Yuzhu then asked, "The interlayer of the thing I drew needs to be evacuated, and after the evacuation, the hole reserved for the evacuation needs to be welded. How do you plan to solve this problem, Chief Zhang?"
Zhang Wanshun thought for a moment and said, "Director He, this problem is actually very easy to solve. First, produce the various parts of the thermos according to the drawings you drew. When producing the inner shell, reserve a small hole for vacuuming at the bottom of the inner shell. Then assemble the various parts together for welding. After welding, put them in the vacuum device for vacuuming. When putting them in the vacuum device, put a small tin block on the small hole at the bottom of the inner shell in advance. In this way, after the vacuum is exhausted, we can heat the vacuum device. When the temperature is heated to the temperature at which the tin block melts, the tin block will melt and block the hole reserved for vacuuming, so that the vacuum inside the inner shell can be maintained. Finally, weld an extra layer of protective shell on the bottom of the vacuumed thermos."
After hearing how Zhang Wanshun solved the vacuuming problem so easily, He Yuzhu showed a satisfied smile on his face. He couldn't help but give a thumbs up and praised: "Chief Zhang is worthy of being the head of our technical department! I originally thought that this problem would be very difficult, but I didn't expect you to solve it so easily. Since there is no problem in production, then I would like to ask Chief Zhang to produce 10 samples according to my drawings. Oh, by the way, Chief Zhang, can you make a few more small and exquisite thermos cups that can be held in your hand according to the drawings I drew? This way it is convenient to carry and use."
Zhang Wanshun smiled and replied, "This is easy. We just need to make some modifications according to your drawing. Director He, how many of these small thermos cups do you need to produce?"
He Yuzhu thought for a moment and said, "Let's produce 20 thermos cups first!"
Zhang Wanshun nodded to show that he understood, and then asked: "Okay, I will arrange for the workers to start production immediately. By the way, Director He, what kind of material should we choose to make these thermos cups?"
He Yuzhu answered without hesitation: "Let's use 304 stainless steel as the production material! It has good corrosion resistance and high temperature resistance, which is very suitable for making thermos cups."
Just as Zhang Wanshun was walking out of the technical department with the drawings drawn by He Yuzhu to find workers for production, He Yuzhu suddenly remembered that tin would turn into powder at minus 30 degrees Celsius, and hurriedly stopped Zhang Wanshun, "Chief Zhang, I remember that tin seems to be not resistant to low temperatures. If someone takes the thermos to a cold place, the vacuum state of the thermos liner will disappear, and the insulation effect will be gone."
Hearing this, Zhang Wanshun stopped, looked back at He Yuzhu, and explained with a smile: "Director He, you are right. Tin will indeed turn into powder at minus 30 degrees. Without the isolation of the tin block, the outside air will enter the inner elixir, and the vacuum state will soon disappear. At that time, the thermos will indeed have no insulation effect. However, Director He, only a few areas in our country will experience extreme conditions below minus 30 degrees in winter, so it will be fine as long as we tell the customer to pay attention to it."
Zhang Wanshun's words made sense, but He Yuzhu still felt that this was inappropriate. He frowned, thought for a moment and said, "Chief Zhang, although this situation may be rare, we cannot ignore this problem. If someone uses the thermos in extreme weather and finds that it loses its heat preservation effect, it will affect the reputation of our products. We cannot relax our quality requirements because of a small probability event."
"Chief Zhang, I plan to take these thermos pots and cups to the export commodity fair to be held in Lingnan Province next month. The visitors to the export commodity fair are all from other countries, including our northern neighbor, the Bear Country. The Bear Country's winter is much colder than ours, so we must solve the problem that thermos pots and cups cannot be used in cold regions. Only in this way can we attract more potential customers to come and purchase and earn more foreign exchange for the country."
Zhang Wanshun nodded in agreement after hearing what He Yuzhu said. He realized that his previous idea was a bit simplistic and ignored the potential risks. So he thought about it for a while and said hurriedly: "If that's the case, we can consider welding a patch on the outside of the tin block where it melts. In this way, even if the tin block turns into powder due to the low temperature, the vacuum state of the inner liner can still be maintained due to the protection of the outer patch, thus ensuring that the insulation performance of the thermos is not affected."
"Let's follow this method for now, but Chief Zhang, I personally think it would be better to find a material that can withstand low temperatures and replace tin blocks. This way, we can omit the final welding patch step, which will not only simplify the production process, but also save manpower and costs." He Yuzhu suggested.
"Director He, you are right. I will definitely find a way to solve the problem you raised."
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