"Xiao Liu, with these equipment, can they get the high-precision sight we need? It's not a joke, is it? Why don't I feel unreliable! The next day, Factory 298 arranged for Chen Dashan and his entourage to visit their factory.

At this time, it's basically the standard model.

Xiao Siwei, director of the External Relations Department, and Xue Dingshan, the technical person in charge of this research, accompanied several people to visit their optical instrument production line, mainly to let Chen Dashan have full confidence in them.

"Leader Chen, although the equipment and equipment here are old, there is absolutely no problem with production. The production process of optical lenses is similar, the only difference is the mastery of some time in the production process and the proportion of various formulas. Don't look at a lot of these equipment were produced before the founding of the People's Republic of China, a large part of it was also aided by the former Soviet Union, the time has been decades, the appearance is not very good, many of them are much smaller than our domestic equipment failure rate...... "For these old equipment, Xue Dingshan and others can't say that it is much better than domestic equipment."

It can only be said that the failure rate is small.

The domestic production of optical glass technology has been very backward, even if the Soviet Union aided the technology of New China, it was because the Soviet Union itself did not learn it thoroughly, and then reserved a little for New China, China's technology in this area can be imagined.

Optical glass, generally using furnace billet, melting raw materials, cooling and forming splitting billet, cutting blank chamfering, according to the drawings need to cut into small pieces after heating and softening, pressing blank forming, annealing stress relief, testing performance, in line with the use of blanks will enter the polishing process of optical glass manufacturing.

It seems that the process is very simple, but this simple process requires a lot of technology.

"Mr. Xue, what is the pass rate of our materials?" Liu Yijiu saw that all of them were clay furnaces, but he didn't see the high cost, but they could keep the solution stable, and rarely produced bubbles inside the raw materials and the traces of veins like water lines left after stirring.

What's more, the platinum furnace has always been recyclable, and I don't want the clay furnace to be scrapped after using it once.

To produce high-performance optical glass, it is necessary to use a platinum furnace.

What's more, the price of platinum in this era is far worse than gold. Gold is gold, platinum is not gold, that's the perception of most people in this world.

After all, platinum is just one of the raw materials used in industry.

As soon as he heard Liu Yijiu ask about the most critical optical glass production pass rate, even Xue Dingshan, who was engaged in technology, smiled bitterly.

"Over the years, through continuous improvement of the production process, adjustment of temperature and various technical parameters, we have increased the pass rate from 10 to 15 percent to 20 to 25 percent...... "They are still not satisfied with this production efficiency.

After all, whether these optical glasses can be used or not will not be known until they are processed later.

"Why not a platinum furnace? Although the cost of this furnace is many times higher than that of clay furnaces, it can be recycled, and the melting process can also ensure that the quality of the solution with rare elements in it is stable, and at the same time, the effect is better than that of clay furnaces when cooling...... "For optical glass, Liu Yijiu also knows this.

"Comrade Xiao Liu, is there any theoretical basis for this? Or do you know anyone who uses this kind of production process? Hearing Liu Yijiu's words, Xiao Siwei was upset.

You said that you are young and know a little about firearm design, so young, why bother to stick green onions in the nostrils of pigs and come here to pretend to be elephants? What's more, in the whole of China, their 298 factory has the best optical glass production technology, and at the same time, the person with the best technology is Xue Dingshan in front of them.

They have been groping for so many years and have no way to improve, can this young man who doesn't know what optical instruments are better than them? This makes them embarrassed by the old guys who have been engaged in technology all their lives!

"Director Xiao, I really don't have any theoretical basis for this, as for whether anyone uses such a production process, I don't know this, I haven't seen it with my own eyes, and I can't guarantee it. It's just that when I was learning firearms design, I heard our teacher say that the top optical glass in foreign countries is made of optical glass by using a small platinum furnace, so that stable optical glass can be obtained...... "Liu Yijiu had to push this to his teacher who didn't know who it was!"

Platinum furnaces make optical glass, it's absolutely true.

"Can the pass rate be increased to 40 percent?" Hearing Liu Yijiu's words, Xue Dingshan on the side couldn't help but have his eyes shining.

"It's not clear about the specifics, but it should be more than 50 percent. At the beginning, one of our professors mentioned it, and I forgot it......" Liu Yijiu knew what they were going to ask next, so he directly blocked them with words.

"So high!" Xue Dingshan was shocked.

"How is that possible!" Xiao Siwei also felt incredible.

It is impossible for foreign countries to have such a high yield rate! Optical glass is not ordinary glass, in the melting process in order to let the bubbles disperse, it needs to be stirred, the bubbles do not have a dispersion defect, and the veins such as water ripples produced by stirring are also defects.

As long as there is a defect, it will affect the use effect.

It has always been because these defects cannot be solved, so the yield is low, and even in the middle of the 21st century, there is no way to eliminate defects such as bubbles and veins. The yield rate is only 50%-70%! By the end of the 21st century, this problem was solved, but unfortunately, Liu Yijiu was not a professional technician in this area.

He couldn't help it.

"Whether we can achieve such a yield rate can be experimented. Only the results obtained by experiments are the most reliable. "Technical matters do not have Chen Dashan's right to speak at all. Liu Yijiu didn't dare to guarantee these things.

But he was absolutely sure that the optical glass made in a small platinum furnace would definitely be of more stable quality than that made in a clay furnace, and at the same time, the yield rate would be much higher.

"......" The two didn't say anything, but they had already decided in their hearts that they would definitely have to give it a try.

I had an idea in my heart, and took Liu Yijiu and Chen Dashan and others to visit the next processing workshop, and the production process of precision parts processing, surface treatment and assembly workshops was not so detailed.

"Director Cao, there must be a coating on the objective lens of the scope we require, which is the case outside the 62-type telescope. After all, sniper rifles are needed to be used around the clock. Especially when performing some tasks, snipers are likely to lurk somewhere for several days......" When leaving, Liu Yijiu emphasized this problem to Cao Jingui again, "Also, in terms of quality, I hope you can make all the products meet our requirements......"

At that time, the 79 type, because of the quality of the scope, made the first new Chinese sniper rifle have a lot of headaches, and basically did not establish much merit on the battlefield. It was soon replaced by the Type 85.

"Comrade Xiao Liu, don't worry, we will work hard to provide products that meet your needs!" Cao Jingui said to Liu Yijiu with a smile on his face.

A few can guarantee it, but there are too many, and they can't do it.

Once the superior comes to the production task, many times it is necessary to hand over a sufficient number of products within the specified time!

"Master, can they provide scopes that meet our requirements with such a production environment and equipment?" For the production environment and conditions of the other party, which are far from being comparable to the base, even people like Qin Huaibao who don't know much technology are very suspicious.

"If they can't produce it, it is estimated that they will not be able to produce it domestically." Liu Yijiu sighed helplessly.

There are more than 10 domestic optical instrument manufacturing plants, all of which are established by 298 factories with technical support. The best technology is still in the 298 factory.

"Xiao Liu, why don't we leave someone here to keep an eye on them?" When Chen Dashan was about to arrive at the train station, he discussed with Liu Yijiu in a low voice, "In this way, once they are done, they can bring back the scope for the sample in the shortest possible time?" ”

Chen Dashan is worried that he will not hurry up here.

"Well, isn't it? After all, Qin Huaibao doesn't know much about these things......" Looking at Qin Huaibao, who was secretly looking at Wang Xinyue from time to time, Liu Yijiu couldn't help but hesitate.

He was worried that Qin Huaibao would reveal some secrets of their base in front of the beauties. Men, in order to gain the favor of women, will definitely show that they are different from the men around them. What Qin Huaibao can attract to the girls in front of him is the big guys hidden in their base.

The DF-5, a missile that can hit 8,000 kilometers away, can destroy the atomic bomb of a major city of US imperialism, and there is never any need to worry about a nuclear power plant that runs out of energy and does not have enough electricity...... These things are absolutely lethal to a girl who has no understanding of the whole world like this!

Qin Huaibao originally liked Wu Yue, a little nurse with big braids, but how could Wu Yue, who was always wearing a light blue nurse uniform, compare with Wang Xinyue, who was wearing a trend!

Even if Wu Yue's face is much better than Wang Xinyue's.

"It's a lot easier to have a representative at the factory. I hope to be able to manufacture the products we need in the shortest possible time, after all, they don't need to design these scopes...... "Wang Dashan is now eager to see a sniper rifle with a scope that can easily take out a range of more than a thousand meters appear in his hands.

"Okay then! Ask Qin Huaibao first. Liu Yijiu nodded.

For becoming the resident representative of their base in Factory 298, Qin Huaibao is absolutely willing. Liu Yijiu explained to him some things that needed attention, and then asked him to memorize the confidentiality regulations, and then boarded the train back to Rongcheng at the urging of Chen Dashan.