Thinking like this, two teenagers in work clothes emerged from the corner and greeted Lin Long and his party. Lin Hanlong waved his hand and told them to wait for a while. Then he turned around and went into his office, where the workshop was separated by hollow bricks, and the inner wall was also laid with kapok panels for sound insulation, and he sometimes had to spend the night in the workshop and do engineering calculations, which required a relatively quiet environment.

The office was filled with just a few desks, a few cabinets, and a row of shelves, and piles of paper, oddly shaped glass blocks, and mechanical parts. There is also a small door inside that leads to his single quarters. As a senator, this was one of the few privileges he enjoyed.

Lin Hanlong walked to his desk and opened the cabinet door. Inside the cabinet is a small moisture-proof cabinet with a small padlock with a sailing brand. Lin Hanlong took down a bunch of keys from his belt, picked out a handful and opened the lock, Lingao was very humid in the summer, and it was essential to prevent moisture from the work, and took out his treasure from it: a cowhide belt with tools, on which hung a bunch of tools and measuring tools brought from the original time and space: a Fluke's multimeter, fully functional; A strong flashlight, the original lithium battery is not very usable, I don't know if Zhong Lishi can make a substitute? He took out a calculator from the computer bag he was carrying, which was a powerful TI graphing calculator that he had bought at a high price before the crossing. He had all of these things in place on his belt. Zuihou stuffed the entire computer bag into the moisture-proof cabinet and locked the cabinet door.

"Chief Lin! That's today's data. One of the teenagers in overalls saw him come out and hurriedly handed over a large thick notebook. The two teenagers were students, and according to the school system, they were required to devote a certain amount of time each week to work in various factories.

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

The furnace is a newly repaired annealing furnace for optical workpieces. A boxy black box, encased in refractory bricks. There are doors on the upper side that can be pulled apart and the workpiece is pulled out along the slide. The lower part is a stove, and a gas bag is connected to the outside of the workshop, and there is an adjustable fire door and air vent. There are several rudimentary pointer gauges on the top of the annealing furnace, not even a glass cover, and the scale plate below the pointer is hand-drawn.

However, all the manufacture of glass generally involves the process of glass annealing. Lin Hanlong sometimes reads novels and wonders that the protagonist of Weishenme's glass-burning is never injured by glass shards? As a general rule, there is a great deal of mechanical stress on the inside of rapidly cooled cast glass products. Thicker glass blanks are in danger of bursting if they are processed slightly. Therefore, in the glass factory, there must be an annealing kiln to anneal the finished glass: the blank is reheated to a temperature close to melting, and then it is allowed to cool slowly. As for what temperature is right and what is the rate of cooling, this is the specific process of the glass factory. Although Xiao Bailang built an annealing kiln and retrieved the craft manual from the big library when he was engaged in the glass factory, the production conditions of this time and space were different from those of the old time and space, and they could not be fully applied. The specific temperature and time are accumulated bit by bit by the veterans and workers of the glass factory.

Now Lin Hanlong and his subordinates also have to explore to correctly grasp the temperature control data of optical glass products. The two teenagers from the school were the human flesh temperature control device, and they had to keep the temperature in the furnace as much as possible at a predetermined drop curve.

As soon as I got close to the annealing furnace, I felt that the heat was overwhelming. Lin Hanlong is used to it, although the ventilation in the workshop is not bad, but now the outside temperature is also 30 degrees. There is no other way to cool down than mechanical forced ventilation.

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

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

Lin Hanlong nodded a few numbers.

"What do you think of these numbers?"

The apprentice thought for a while: "The thermometer was exchanged, but the reading was still low, indicating that it was a problem with the furnace itself." ”

Lin Hanlong hummed, took out the multimeter, and connected a thermocouple probe. The probe is then inserted into the measuring hole in the top of the furnace. He turned the display to show his apprentice.

"It's the same on both sides."

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

He turned to the two teenagers on the side: "The fire in the stove can be extinguished and let it cool naturally." You should explain to the successor that it should be at least 60 degrees cold before you can open the furnace. ”

Lin Hanlong then walked to a spherical grinder. Since he made his first manual grinding machine, the machine shop has built four new special grinding machines. The one in front of me is the latest, the structure is roughly the same, the biggest change is that the power is changed to a transmission shaft + belt, and at the same time, a large number of metal parts are used instead of durable wooden parts, in addition to a lot of devices for adjusting various parameters. At present, this grinder has been dismantled in eight pieces, and all the internal organs have been taken out and put on the ground. Lin Hanlong crouched down and stared at a bevel gear the size of a watermelon, several of which had been broken.

"Junjie, go to the office of the Ministry of Science and Technology to call Chief Sun Li, and say that I will invite him to come over."

Yesterday Lin Hanlong dismantled the grinder by himself and checked whether it could be solved on the spot, but found that he could not deal with the failure.

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

A thin middle-aged man hurriedly greeted him and nodded. "Sir! Ah, chief, good chief. This middle-aged indigenous worker who became a monk halfway through the road would have pounced on Lin Hanlong as soon as he entered the workshop, and then followed. After being reprimanded by Lin Hanlong many times, he was finally able to stick to his post. He pointed out a few large glass bottles to Lin Hanlong like a treasure.

"Chief, you see, according to your orders, these stone powders have been broken up, and they have been sifted separately."

Lin Hanlong glanced at the machine behind the middle-aged man, "How is the ball mill going?" ”

"Okay, very good."

Lin Hanlong stretched out his hand and picked up the work notebook hanging next to the machine:

"Is there any looseness? Is the vibration normal? "Originally, the machine had to write the work records of the machine himself, but the workers who were still in the literacy class could not fill them out. The students of the National School could still help when they came, but Lin Hanlong had already assigned them a job, so he simply filled it himself.

It took almost an hour for Lin to fill out the records, check the equipment, and check the inventory and products.

Lin Hanlong was about to finish filling in the record when he heard someone calling him, and when he looked back, he saw that Zhan Wuya, Sun Li and others were walking towards him. He swiped a few strokes, filled out the record, signed his name, and put the notebook back.

The veteran Jishu personnel of the machine factory gathered in front of the broken spherical grinder.

"It's clearly a casting problem. Look at this, the typical anti-white mouth. Lin Hanlong pointed to the section of the part. Everyone nodded, but no one spoke.

The bevel gear was cast, but apparently something went wrong with the casting.

"Hehe, it's inevitable." "The parts to be returned to the scrap warehouse are piled up, 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 plan to delve into this kind of thing every day in Lingao, and even the cannons to be used on warships had accidents such as broken gears, not to mention here, "Can it be repaired?" ”

Sun Li, who had been looking at the section closely, shook his head: "I'm afraid it won't work." The crack is visible to the naked eye, and you don't know how deep it is if you don't test it. He gestured, "If there are no cracks, cold welding can be done." ”

Zhan Wuya patted Lin Hanlong on the shoulder. "Make a more haode for you." After the end of the war, the pace of arms production slowed down, and there were still some materials originally prepared, so Zhan Wuya was quite confident in speaking.

"Make a new week to get the top you take to the surface grinder first."

Lin Hanlong shook his head. "The flat grinding can't move, the binoculars navy has to be in a hurry."

Zhan Wuya snorted. The first batch of products of the optical factory included a three-year army 8x monocular (test), which is actually the simplest refractor telescope, with a bamboo tube for protection and carrying. The Navy dismisses such rudimentary things, and they require good visibility, high light transmission, easy holding, and good sealing and corrosion resistance. They asked for binoculars so that they could match the army's equipment at once. A large number of binoculars need surface grinders to make right-angle prisms, which involves additional investment and expansion of the optical factory. Fortunately, Wang Luobin, who was far away in Sanya, also supported the construction of double cylinders, which he could make into a fixed type and put on various watchtowers. As an optics professional, Wang Luobin also emotionally supports the expansion of the optical industry.

"If you flatten, you can get everything together in three to five days at most." Zhan Wuya paused. "The army is really right. Don't know what the Marines want? ”

The crowd chatted for a while, and then gradually dispersed. For others, it was now close to the time of dinner, and after eating and doing something, they could start the night's rest and entertainment, and if they wanted energy, they could carry the maid and roll the sheets. And Lin Hanlong's day has just begun. The temperature is relatively stable at night, which is conducive to the processing of optical parts.

What's more, he can monopolize the power output and network of the Ministry of Science and Technology.

At five o'clock, the loudspeakers all over Lingao sounded "light music". People who work everywhere know that this is a call for night workers. When the music is played again, the night shift managers of each workshop will take a roll call at the door of the workshop, and then do a handover with the workers on the day shift. One after another, the workers of the optical workshop arrived, burping and shaving their teeth and joking with each other. The small restaurants on the street will hold dinner before the night shift workers go to work, so that they can have enough to eat and have the strength to go to work.

Before the second music sounded, the people had already arrived. Lin Hanlong stood aside with his hands behind his back, watching his workshop supervisor line up the workers and roll call according to the roster. Lin Hanlong thought to himself that these people could be lined up like the army, and the working class was indeed naturally organized and disciplined. It is a pity that although most of these people are young, except for a few who are strong, most of them are thin and weak because of long-term malnutrition, and it is not of much use to really pull them into battle. He couldn't help but shake his head at the thought of this.

"Chief Lin! All the night shift workers in the optical workshop should be 37 people, but there are 37 people. Please instruct! ”

Lin Hanlong coughed and walked up. "Comrades! I'm going to talk about one thing today. Dacha knows that something went wrong with the No. 4 grinder yesterday, and debris flew out. I would like to emphasize that the safety measures of our machinery are very haode. The debris was blocked by a safety net and did not hurt anyone. Second, our safety awareness is still very insufficient, the safety norms are not in place, after the grinder is broken, some people watch, but no one to pull the emergency stop lever. It's a no-no! To put it mildly, this is looking for death! ”

Seeing that the people below still didn't react, Lin Hanlong sighed in his heart, and his tone became stern.

"If this kind of thing happens in the future, you will be deducted if you don't follow the safety regulations! Team leaders should pay special attention to the fact that you have direct responsibility. In addition, we will conduct safety drills from time to time, starting tonight. The workers' eyes became serious. Deductions are a serious matter. Safety drills take up breaks, so it's also a serious matter.

Lin Hanlong was very satisfied to see that the workers were looking at him attentively. "That's all. Let's get to work. ”

The safety attendant in the workshop checked the power transmission system of each equipment, and then checked the gas valve, and Zuihou lit the gas lamp in the workshop, and the original light in the workshop was suddenly bright. It was with the gas lamps that the large-scale night shift production of Lingao's industry became possible. Every time Lin Hanlong saw this scene, he felt that the person who invented the gas lamp had contributed no less than Edison, at least in this time and space.

The glass workpieces to be machined are already "on the plate" - meaning they are firmly glued to a shallow metal tray in the shape of a conical with a glue made of asphalt and beeswax, which is then screwed to a spherical bracket that is mounted on the shaft of the grinding machine. Workers in the grinding machine shift work in pairs and confirm that the parts on the tray are in line with the settings on the grinding machine according to the work order.

Two people from the abrasives group of the general affairs team also sent the abrasive paste to the side of each grinding machine according to the work order, and then started to adjust a new batch. The shifters were also busy pressing a new batch of workpieces into metal pallets with machinery. This is a very demanding job, the action of pressing into the workpiece should be fast, while the adhesive is still hot, and it must be guaranteed that it must not be crooked. A group of two people in the mechanical class was busy starting a grinding machine that was already ready. The machine has been tried manually without problems, and the lubrication has been added, and the grinding machine shift has also confirmed that everything is normal.

According to the work order, this grinding machine will do coarse grinding tonight, and the speed selected is faster, so the belt needs to move a transmission wheel with a smaller diameter. After moving, the belt is re-tensioned, and then the clutch lever is moved so that the fixed transmission wheel overhead is combined with the main power transmission shaft. There was a creaking sound all over the machine, and then the grinder spun and the noise slowly died down. The mechanic glanced at the tachometer, signaled to the grinder that everything was in order, and then stepped aside to fill out the work record. The grinder picks up a small brush and dips it in the abrasive and carefully taps it on the rotating workpiece. After a while, all the workpieces were coated with abrasive, so the grinding disc was lowered and let it swing back and forth. The grinding machine is now in normal working order.

After a while, the 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 whether there was any abnormal condition and sound, and then returned to the door of the office and saw Wu Nanhai sitting on a long wooden back stool in the rest area of the workshop.

"Huh? Lao Wu, why didn't you say a word when you came, just sit here? Lin Hanlong was a little surprised,

Wu Nanhai, who had witnessed everything, sighed: "Lao Lin, you are really delicate here!" Haha. ”

Lin Hanlong motioned for him to come to the office to speak. Several naturalized staff members, as well as Chu Qing, were already waiting at the door of the office. He glanced at Chu Qing and remembered the pack of limited edition cigars that he had forwarded to him, Wu Nanhai had asked him to try out a batch of magnifying glasses last time, and specially sent a few packs to him.

"Rare guests." Lin Hanlong beckoned his apprentice to pour tea and water for Wu Nanhai: "I don't have anything here, and I can't entertain well." ”

"It's okay, it's okay, we're also working for it!" Wu Nanhai snorted haha, "I said last time I wanted 50 magnifying glasses, and you can do it in a month, it's amazing." ”

"If it takes a year to do it well, we won't have to industrialize." Lin Hanlong said, taking the towel that the apprentice had wrung for him, and wiped his face.

"By the way, I heard that Nanjing in the Ming Dynasty can make aging glasses or something, using crystal chips to grind, do you want to make a report and get a few indigenous glasses workers to help?"

"Of course, it's good to have it, but I don't think it makes much sense, this kind of handicraft craftsman, how many pieces can you make a day? It is nothing more than a luxury that can only be enjoyed by dignitaries. I am grinding the machine now, even if the quality is not as good as theirs for the time being, at least the cost and output are not the same. He paused, "I'm interested in crystals." I heard that there is a big crystal mine in the East China Sea of Lianyungang......"

"Hehe, the people from the remote exploration team said last time: There is a Haode crystal mine in Hainan."

The two of them were talking, and someone outside was pushing a flatbed truck.

Lin Hanlong motioned for someone to take a flat wooden box from the car and put it on the ground next to the two. Open the box, and inside is a layer of straw mat. Remove the straw mat and reveal five small boxes, which are also separated by straw mats. Lin Hanlong reached out and picked up a small box and opened it. Inside is a magnifying glass, embedded in the flannel at the bottom of the box.