In this way, Xue Huan recovered and regained her life. Pen % fun % Pavilion www.biquge.info

It's just that the power of his body has been exhausted, and he no longer has all the magic of the previous immortal family, and now, like Liu Yuanshan, he has become an ordinary mortal.

"From now on, I'll be the same as you!" Xue Huan's joy after regaining her life passed, and she was also a little depressed.

Liu Yuanshan comforted: "Don't be afraid, in fact, I like you better!" ”

"Why?"

"In this way, the two of us can be the right person......"

Liu Yuanshan looked at her with a smile.

The corners of Xue Huan's eyes were slightly moist, but she didn't say anything.

"What are your plans for the future?" Liu Yuanshan asked again.

Xue Huan raised her head, her pale blue eyes were even clearer in the sun, and she slightly covered the sun with her hand, and said, "I don't have any plans, I think I'll stay and help you in the future." The heat is dead, why should I be basking in the sun like this. ”

"You're weak, you should get more sun!"

"Then why are you here?"

"I'll accompany you to the sun......"

"But it's summer, I'm almost scorched!"

……

Xue Huan was very curious about the penicillin that saved her, and with her love for biology, she took the initiative to take on the task of cultivating penicillium strains.

Liu Yuanshan was afraid that she would work too hard alone, so he gave her a capable assistant: Xiaoqing!

Xiaoqing, this girl, is smart and clever, and her IQ can kill most of the elementary school dogs and even junior high school dogs in the Republic in later generations, and she has naturally learned a lot of things since she followed Liu Yuanshan for more than half a year, and now she is asked to be Xue Huan's assistant, which is really the most suitable thing.

Liu Yuanshan's idea is to let Xue Huan and Xiaoqing try it according to the process first, and then recruit people and then produce it on a large scale, comparing penicillin, even in the later Anti-Japanese War period, it has become more expensive than gold. If the monopoly market forms a scale, and this supreme elixir is delivered to those injured officers and soldiers in the troubled times of the late Ming Dynasty, the wealth will naturally roll in.

"Since Xue Huan cultivates strains, let's make a batch of glass instruments for her first!"

Now that the two blast furnaces for firing glass have been built, and all kinds of materials have been prepared for a long time, for the sake of Xue Huan's affairs, the firing of this glass has been delayed for more than a month, and now, it can not be delayed any longer.

The use of glass is great, it can be made into concave and convex mirrors, can be made into telescopes, can be made into optical instruments, can be made into myopia mirrors, can be made into utensils, can be made into dressing mirrors and so on, so glass must be produced.

Gather everyone together and come to the sintering furnace to start firing the glass.

The first step in making glass is sintering.

Quicklime, quartz sand and soda ash are mixed in a certain proportion, and then put into the sintering chamber, where they are burned at high temperature for a period of time, and these mixtures undergo an unknown chemical reaction to form glass-like vitreous, but there are still a lot of impurities in the glass at this time.

Fortunately, the density of impurities and vitreous is different, and it is automatically stratified in a high-temperature melting state.

Once the glass is successfully fired, after cooling, the impurities below are knocked out, and the translucent things on the top are put into the crucible and heated again to form a pure glass paste, and then various glass products can be made.

Quartz sand and quicklime don't worry, the only thing that is more rare is soda ash, and there is no place to do it.

There is no place for soda ash to be engaged, and there is no way to produce it on a large scale, so there is only one way, the old way: replace it with plant ash!

Liu Yuanshan estimated the alkali content in the ashes, mixed the three things together, put them in the sintering room, and began to sinter on a large fire.

Glass is not the same as iron.

Iron can be fired with charcoal, but glass must be sintered separately from charcoal in different sintering chambers, and the temperature rises more slowly. Generally speaking, it takes a maximum of an hour for iron to be fired into molten iron, but it is more troublesome to burn glass into a molten state.

It took Liu Yuanshan three hours to successfully fire the glass.

That's the first step.

In order to make glass, it is also necessary to fire it twice in a crucible.

The purpose of secondary firing is to remove the pigment caused by the presence of impurities such as iron oxide in the vitreous matter, and the second is to remove air bubbles.

Generally speaking, after the glass melts after knocking out the impurities, there are some slight blue-green colors inside, which affects its transparency, and because the glass is viscous and difficult to flow, many small bubbles are mixed in the glass firing process and are difficult to remove.

Although the glass made in this way does not affect the use, the appearance is very ugly compared to modern glass. This is especially true if it is used as an optical instrument.

As soon as it cooled down slightly, Liu Yuanshan asked people to lift out the whole piece of glass, and knocked out the bottom layer of black impurities with a small hammer, and what was left was the translucent blue-green vitreous with a large number of bubbles inside.

"Come on a few people, put this glass head in the crucible!"

Liu Yuanshan commanded in an orderly manner among several people.

Some time ago, because of the delay of Xue Huan's affairs, I couldn't try to make glass in time, but my subordinates were not idle, at least they went to other places to get a batch of high-temperature resistant pottery crucibles.

The translucent vitreous was placed in a crucible, then six crucibles were placed in a second furnace at the same time, and then a fire was set in the combustion chamber, and the long firing work began.

In order to avoid contamination of the vitreous material by the soot produced by combustion, the crucibles are all with lids, and at the same time, a small hole is left in the lid so that things can be inserted and stirred after the vitreous melts.

After four long hours of firing, the glass inside the crucible finally turned into a thick glass slurry, like a viscous glue, which looked bright against the firelight, filled with a large number of tiny bubbles.

"Take one out and take a look......" Liu Yuanshan asked someone to take out a crucible and look at it carefully in the sunlight for a while.

The glass slurry is viscous, and the firing is very good, if it is not for the color cast and bubbles, it is no problem to pour some utensils now, it can be seen that he is used to modern glass supplies, if he uses something full of bubbles, he will definitely have a pimple in his heart.

According to the tips of the divine book, this reducing agent is best to be manganese dioxide, if there is no manganese dioxide, you can also find something else to replace it, as long as there is reduction. Liu Yuanshan had no other strong reducing agent in his hand, so he could only endure the pain and use the fire nitrate extracted from the toilet with great difficulty.

As for removing air bubbles, it's much simpler, just use refined table salt.

After many experiments, the transparent bubble-free glass slurry was finally presented to everyone, and it was almost evening.

The people did not dare to stop work, and the first batch of cups, test tubes, and measuring tools were made from molds overnight, and then put them in the top room of the furnace for tempering. (To be continued.) )