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Section 148 Optical Workshop

 As he was thinking this, two teenagers in work clothes emerged from the corner and greeted Lin Long and his group. Lin Hanlong waved his hand and asked them to wait for a while. Then he turned around and went into his office workshop to use hollow bricks alone.

In the separated corner, soundproof kapok boards were laid on the inner wall. He sometimes had to stay overnight in the workshop and do engineering calculations, so he needed a relatively quiet environment.

There are only a few tables, a few cabinets and a row of shelves in the office, which are filled with documents, papers, strange-shaped glass blocks and mechanical parts. There is also a small door inside that leads to his single dormitory. As a veteran, this is

One of the few privileges he enjoyed.

Lin Hanlong walked to his desk and opened the cabinet door. Inside the cabinet was a small moisture-proof cabinet with a small Sailboat brand padlock. Lin Hanlong took a bunch of keys from his belt, picked one out and opened the lock.

The humidity here in Lingao is very high in summer, so moisture prevention work is indispensable. He took out his treasure: a cowhide belt to hold tools, and on it hung a bunch of tools and measuring tools brought from the original time and space: a Fluke

A multimeter with full functions; a strong flashlight, the original lithium battery is no longer usable. I wonder if Zhonglishi can get a replacement? He took out a calculator from the computer bag he carried with him

, is a ti graphing calculator that he bought at a huge price before traveling through time. It has powerful functions. He inserted these things into the corresponding positions on his belt. Finally, he stuffed the entire computer bag into the moisture-proof cabinet and locked the cabinet door.

superior.

"Chief Lin! This is today's data." One of the teenagers in work clothes saw him coming out and quickly handed over a large thick book. These two teenagers are students, and according to the school system, they must spare a certain amount of time every week

Participate in labor in various factories.

Lin Hanlong took it and took a quick look at it: "Let's go take a look at the stove."

The furnace is a newly built optical workpiece annealing furnace. It is a square black box, covered with refractory bricks. There is a door on the upper side that can be opened, and then the workpiece can be pulled out along the slide rail. The lower part is a furnace.

A gas bag is connected outside the workshop, and there are adjustable fire doors and air blast vents. There are several simple pointer instruments on the top of the annealing furnace, which do not even have glass covers. The scale plates under the pointers are hand-painted.

Whenever glass is made, it generally involves the process of glass annealing. Lin Hanlong sometimes wonders why the protagonist of burning glass is never injured by glass fragments? According to the general situation: there are large internal holes in rapidly cooled cast glass products.

Mechanical stress. Thicker glass blanks are in danger of bursting after a little processing. Therefore, there must be an annealing kiln in the glass factory to anneal the finished glass: reheat the blank to a temperature close to melting, and then let it slow down.

Slow cooling. As for what temperature is suitable and what the cooling rate is, this is the specific process of the glass factory. When Xiao Bailang started the glass factory, although he built an annealing kiln and retrieved the process manual from the big library, this

The production conditions of time and space are different from those of old time and space, and cannot be applied across the board. The specific temperature and time are accumulated bit by bit by the veterans and workers of the glass factory.

Now Lin Hanlong and his men have to go through moos to correctly grasp the temperature control data of optical glass products. Two teenagers from the school are human body temperature control devices. They must try their best to keep the temperature in the furnace at a predetermined drop curve.

superior.

As soon as he got close to the annealing furnace, he felt the heat. Lin Hanlong was used to it. Although the ventilation in the workshop was pretty good, the outside temperature was now 30 degrees. There was nothing better than mechanical forced ventilation.

way to cool down.

Lin Hanlong handed the notebook with recorded data to his apprentice: "Junjie, look at this data."

The apprentice looked at the data and charts carefully, then raised his head: "Master, I think the data this time is very good." The two teenagers next to him were obviously relieved.

Lin Hanlong clicked on a few numbers.

"What do you think of these data?"

The apprentice thought for a while: "I exchanged the thermometers, but the reading is still low, which means there is a problem with the furnace itself."

Lin Hanlong hummed, took out his multimeter and connected a thermocouple probe. Then he inserted the probe into the measuring hole on the top of the furnace. He turned the display screen over to show his apprentice.

"Same on both sides."

Lin Hanlong nodded. "Then we'll do it next time when we renovate."

He turned to the two teenagers on one side: "The fire in the stove can be extinguished and allowed to cool down naturally. Please tell your successor that the stove must be cooled to at least sixty degrees before turning on the stove."

Lin Hanlong then walked to a spherical grinding machine. Since he made the first manual grinding machine, the machinery factory has built four new special grinding machines. The one in front of him is the latest one, with roughly the same structure. The biggest change

The power was changed to a transmission shaft + belt, and a large number of metal parts were used instead of durable wooden parts. In addition, there were many more devices used to adjust various parameters. At present, this grinding machine has been torn into eight pieces, and its internal organs have been completely removed.

They were all taken out and placed on the floor. Lin Hanlong squatted down and stared at a bevel gear the size of a watermelon, several of the teeth on which had been broken.

"Junjie, go to the office of the Ministry of Science and Technology and call Chief Sun Li and ask him to come over."

This new equipment broke down less than a week after it was put into use. Yesterday, Lin Hanlong took apart the grinding machine himself to check if it could be solved on the spot. He found that he couldn't solve the problem.

The apprentice agreed and went out. Lin Hanlong stood up and walked towards the other corner of the workshop.

A thin middle-aged man hurriedly came up to him, nodded and bowed. "Sir! Ah, Chief, hello, Chief." This middle-aged indigenous worker who had become a monk would have pounced on Lin Hanlong as soon as he entered the workshop and followed him. He was ignored by Lin Hanlong.

After being reprimanded for the first time, he was finally able to stick to his post. He pointed out several large glass bottles to Lin Hanlong like a treasure.

"Commander, you see, these stone powders have been crushed according to your instructions, and they have all been sifted separately."

Lin Hanlong glanced at the machine behind the middle-aged man and asked, "How is the ball mill doing?"

"Okay, very good."

Lin Hanlong reached out and picked up the work record book hanging next to the machine: "Is there any looseness? Is the vibration normal?" Originally, the machine's work record should be written by the operator himself, but workers who are still taking literacy classes can't do anything about it.

Fill in these. The students from the national school can help when they come, but Lin Hanlong has already assigned them a job, so they just have to fill it in themselves.

It took Lin Hanlong almost an hour after going to work to fill in records, inquire about equipment, and check inventory and products.

When Lin Hanlong was about to finish filling in the record, he heard someone calling him. When he turned around, he saw that it was Zhan Wuya, and Sun Li and a group of people were walking towards him. He filled out the record a few times, signed his name, and put the book back.

The veteran technicians of the machinery factory gathered around the broken spherical grinding machine.

"Obviously it's a casting problem. Look at this, it's a typical counterargument." Lin Hanlong pointed to the cross section of the part. Everyone nodded and no one spoke.

This bevel gear was cast, but apparently something went wrong during the casting process.

"Hehe, it's inevitable." Zhan Wuya came out to smooth things over, "There are mountains of parts to be recycled in the scrap warehouse, and the people in the reliability office can't even do failure analysis."

"It doesn't matter if it's broken, just don't break my glass." Lin Hanlong didn't want to go into details. This kind of thing happens every day in Quanlingao. Even the cannons used on warships have had accidents such as gear breakage.

What's more, here, "Can it be repaired?"

Sun Li, who had been getting closer to look at the cross section, shook his head: "I'm afraid it won't work. The cracks are visible to the naked eye, and you don't know how deep they are without flaw detection." He gestured, "If there are no cracks, it can be done by cold welding."

Zhan Wuya patted Lin Hanlong on the shoulder. "I'll make a better one for you." After the war, arms production slowed down, and there were still some materials originally prepared, so Zhan Wuya spoke with confidence.

"If you can finish it in a new week, put it on the surface grinder first."

Lin Hanlong shook his head. "You can't move the flat grinder. The Navy is in a hurry with the binoculars."

Zhan Wuya snorted. The first batch of products from the optical factory included a three-year-old 8x monocular telescope (for trial use) used by the army. It was actually the simplest refracting telescope with a protection on the outside.

Bamboo tubes were used. The navy looked down upon such crude things. They required good vision, high light transmittance, easy holding, good sealing, corrosion resistance, and so on. They asked for binoculars, which would be better.

It can compete with the Army's equipment. To make a large number of binoculars requires surface grinding to make right-angle prisms, which involves additional investment and staff expansion of the optical factory. Fortunately, Wang Luobin, who is far away in Sanya, also supports the construction of binoculars.

It can be made into a fixed type and placed on various watchtowers. As a professional in optics, Wang Luobin also emotionally supports the expansion of the scale of the optical industry.

"If it's flat grinding, we can get everything together in three to five days at most." Zhan Wuya paused. "Army, soil, navy, and ocean, you're right. I wonder what the navy wants?"

Everyone chatted for a while and gradually dispersed. For others, it was almost dinner time. After eating and doing something, they could start their night's rest and entertainment. Those who had the energy could go to bed with the maid in their arms.

.And Lin Hanlong's day has just begun. The temperature is relatively stable at night, which is conducive to the processing of optical parts.

More importantly, he can monopolize the power output and network of the Ministry of Science and Technology.

At five o'clock, "light music" was played from the big speakers all over Lingao. People working everywhere knew that this was a call to workers on the night shift. When the music was played again, every workshop

The night shift supervisor would take roll at the door of the workshop and then take over the shift with the day shift workers. Workers from the optical workshop arrived one after another, burping, shaving their teeth, and joking with each other. Various small restaurants on the street would be there.

Night shift workers had dinner in advance before going to work so that they would be full and strong enough to go to work. Before the music started playing for the second time, everyone had already arrived. Lin Hanlong stood aside with his hands behind his back, watching his workshop supervisor pick up the workers.

Lin Hanlong lined up and called according to the roster. Lin Hanlong thought that these people could line up as neatly as the army. The working class is indeed naturally organized and disciplined. Unfortunately, although most of these people are young people, except for a few

Although he was a strong man, he was probably weak due to long-term malnutrition. He might not be of much use if he were to be dragged into the battlefield. Thinking of this, he couldn't help but shake his head.

"Chief Lin! Of all the night shift workers in the optical workshop, 37 were supposed to be present, but actually 37 were present. Please give instructions!"

Lin Hanlong coughed and walked up. "Comrades! I will talk about one thing today. Everyone knows that there was something wrong with the No. 4 grinding machine yesterday, and debris flew out. What I want to emphasize is the safety of our machinery.

The measures were very good. The debris was blocked by the safety net and no one was hurt. Secondly, our safety awareness is still insufficient and we do not have a good grasp of safety regulations. After the grinder was broken, there were people watching, but no one pulled the emergency stop lever.

.This is not possible! To put it more seriously, this is courting death!"

Seeing that the people below still didn't respond, Lin Hanlong sighed inwardly and his tone became stern.

"If something like this happens again in the future, if you don't follow the safety regulations, you will be deducted! Team leaders should pay special attention to it. You are directly responsible. In addition, we will conduct safety drills from time to time, starting tonight." The workers' eyes changed.

Be serious. Deducting money is a very serious matter. Safety drills take up rest time, so it is also a serious matter.

Lin Hanlong was very satisfied when he saw the workers looking at him attentively. "That's it. Let's start work."

The safety attendant in the workshop checked the power transmission system of each equipment, and then checked the gas valve. Finally, he lit the gas lamp in the workshop, and the workshop, which had become dim, suddenly became bright. It was precisely

With the advent of gas lamps, large-scale night shift production in Lingao's industry became possible. Every time Lin Hanlong saw this scene, he felt that the contribution of the person who invented gas lamps, at least in this time and space, was no less important than Edison.

The glass workpieces to be processed have been "on the tray" - which means that they are firmly stuck in a conical-shaped shallow metal tray with an adhesive made of asphalt and beeswax, and then the tray is fixed on a spherical bracket with screws.

Finally, the entire bracket is installed on the rotating shaft of the grinding chute. The workers in the grinding chute work in pairs and confirm according to the work order that the parts on the upper plate are consistent with the settings on the grinding chute.

The two people from the abrasive team in the general affairs shift also delivered the prepared abrasive paste to each grinding machine according to the work order, and then started to prepare a new batch. The people in the shift shift were also busy using machinery to press the new batch of workpieces.

Insert the metal pallet. This is a very demanding job. The workpiece must be pressed in quickly while the glue is still hot, and it must not be twisted. A group of two people in the mechanical class are busy starting up a grinding machine that has been prepared.

.The machine has been manually tested and there is no problem. It has been lubricated and the grinding team has confirmed that everything is normal.

According to the work order, this grinding machine will be rough grinding tonight, and the selected speed is faster. For this reason, the belt needs to be moved to a smaller diameter transmission wheel. After the movement is completed, the belt is re-tensioned, and then the clutch lever is moved to allow

The fixed transmission wheel above the head was combined with the main power transmission shaft. There was a squeaking sound from everywhere in the machine, and then the grinder started to rotate, and the noise slowly disappeared. The mechanic glanced at the tachometer and asked the grinder

Indicating that everything was normal, he stepped aside and began to fill in the work record. The grinder picked up a small "bristle" brush and dipped it in the abrasive, and carefully applied it to the rotating workpiece. After a while, all the workpieces were covered with abrasive, so he

The grinding disc was lowered and allowed to swing back and forth. The grinding machine then entered normal working condition. After a while, other equipment in the entire workshop also roared one after another, and the night shift production of the optical car officially began.

Lin Hanlong walked around the workshop again, paying attention to any unusual conditions and noises, and then returned to the door of the office and saw Wu Nanhai sitting on a long wooden bench in the rest area of ​​the workshop.

"Eh? Why didn't you say anything when you came, Old Wu, and just sat here?" Lin Hanlong was a little surprised. Wu Nanhai, who had witnessed everything, sighed: "Old Lin, you are really meticulous in your work here! Hahaha."

Lin Hanlong motioned for him to come to the office to talk. Several naturalized staff and Chu Qing were already waiting at the door of the office. He glanced at Chu Qing and remembered the package of limited edition cigars sent to him, Wu Nanhai

I wanted him to trial-produce a batch of magnifying glasses, so I sent him a few packs.

"It's a rare visitor." Lin Hanlong called to his apprentice to serve Wu Nanhai tea and water: "I don't have anything here, so I can't entertain you well."

"It's okay, it's okay, we're doing it for work too!" Wu Nanhai laughed, "I said last time I wanted 50 magnifying glasses, and you made them in a month. It's amazing."

"If it takes a year to do it well, we won't need to engage in industrialization." Lin Hanlong said, taking the towel his apprentice twisted for him and wiping his face.

"By the way, I heard that Nanjing in the Ming Dynasty can make aging glasses and the like, using crystal grinding. Do you want to make a report and get some indigenous opticians to help?"

"It's nice to have it, but I don't think it makes much sense. How many slices can a hand-made craftsman like this make in a day? It's nothing more than a luxury product that can only be enjoyed by rich and powerful people. Now I grind it by machine. Even if the quality is not as good as theirs for the time being, at least the cost is

It cannot be compared with the production volume." He paused, "I am very interested in crystal. I heard that there is a large crystal mine in the East China Sea of ​​Lianyungang..."

"Haha, the people from the remote exploration team said last time: There are good crystal mines in Hainan."

The two people were talking when someone pushed a flatbed truck over from outside.

Lin Hanlong motioned for someone to take out a flat wooden box from the car and place it on the ground beside the two of them. Opening the box, there was a layer of straw mat inside. He took off the straw mat and revealed five small boxes, which were also separated by straw mats.

Lin Hanlong reached out and picked up a small box and opened it. Inside was a magnifying glass embedded in the velvet at the bottom of the box.!


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