Chapter Ninety-Seven: Epoch-making

In the past seven days, the group has been tethered, and Su You has focused on smelting.

The first step is to fire out the ventilation pipes.

Then there is the need to prepare a very important thing - water glass.

For a long time, the water glass of later generations needed soda ash or caustic soda to react with quartz under steam heating of about 200 degrees.

It was not until the 21st century that the method of making water glass from miscanthus nitrate began to appear.

Water glass, also known as bubble alkali, is composed of water-soluble sodium silicate, which is higher than cement.

Meishan is the largest producer of miscanthus nitrate in China, and this industry is an important chemical industry in Meishan in later generations.

The materials reported back should naturally be written by him, and highlights such as technological breakthroughs are indispensable embellishments in the report, so he knows this clearly.

Because this thing is so important, so important that Su You even threw Yunxue aside, and he didn't let go back when the seven days were up, and he experimented with him every day.

The new team came again, this time it was the pottery coal group, but the water glass preparation test entered a critical period, and the production of real glass was delayed by Su You, so Zhang Qi led everyone to use the porcelain clay provided by Shijiazhuang to fire various types of standard pipe fittings.

Straight, elbowed, diverter......

Su You and Li tied themselves to the preparation of water glass, which not only needed pure miscanthus salt, quartz sand and toner, but also an extremely high temperature of more than 1,300 degrees.

Even if the formula ingredients and process flow are very clear, the difficulty of the test is quite difficult, and it was not until Zhang Qi and their work were completed that Su You and Li Lianzhu finally got a pot of laboratory-grade sodium glass finished products.

Su You pointed to the crucible and patted Li's shoulder: "Second brother, we have changed an era from today!" Your name will remain in history! ”

Li Lian held the consciousness of not becoming a famous chemist at all, and cried with a face: "Little master, you can do it, let me go back quickly." Good guy burns a car of coke a day and a half, and this money is spent like running water! We're about to burn hundreds of acres of land in the past few days, right?! ”

Su You gave a leash: "Look at your little bit of interest!" This is an epoch-making product! Epoch-making, isn't it?! I'm so happy today, add vegetables in the evening! Eat a big meal! Bacon stewed radish! ”

Early the next morning, the renovation of the two kilns began, the blower box was taken away and sent to be driven by a waterwheel, connected to the ceramic pipe, and the interface was filled with a resin emulsion and clay made yesterday.

Soon, the porcelain tube and the porcelain tube became inseparable, and it was so hard that the hammer could not crack it.

First-class adhesive.

Li Lianzhu didn't sleep well last night, mainly driven by Su You's emotions, and now he and Zhang Qi looked at each other: "Isn't it just glue?" Even if the effect is better than glutinous rice flour and lime slurry, this can't be ...... What era did you draw on? ”

Zhang Qi was also a little unimpressed, but it was not good to hurt the face of the little young master: "Uh...... This, Mr. Big said that there is a rhetorical technique called exaggeration in literature, and the words of the little young master should be the same as 'flying down three thousand feet'......"

Su You laughed angrily, holding his forehead with his hand: "Forget it, you will know how powerful this thing is later...... Now with the blast equipment, the kiln temperature of the two kilns can be increased! ”

Water-soluble sodium silicate performance is better than cement, with it, sealed water pipes can be realized, in order to make efficient use of heat energy, outside the chimneys of the two kilns, in addition to the hot air preheating pipes, there is an additional circle of water pipes for heating, the hot water can be used for poultry incubation, and the temperature stability of the hatching bed is countless times better than that of the stove.

In addition, the asbestos insulation layer can be extremely reinforced, and even after thousands of years, this thing is still the adhesive for the asbestos lining.

There is also the acid resistance of this thing, in the furnace environment, but it is basically acid gas, and the general refractory bricks cannot resist, but the refractory bricks made of it are no problem.

There is also the benefit of brushing wood. Sodium silicate alum salt will dry up quickly, insoluble and non-combustible, brush the wood of this thing, except for alkali, it is not afraid of anything, it is the most suitable flame retardant at present.

The houses of the Great Song Dynasty are basically made of wood......

The watermill room is also strangely good-looking, it is a faint blue, that is because alum salt soda oil uses bile and alum, which are the most readily available now, as a rapid consolidation agent for water glass.

In fact, the tetraalum consolidation agent will be faster, coagulating within a minute, but it is not necessary and not easy to do.

Only the rescue can use that thing, the brush wood solidifies too quickly but affects the construction, and a few minutes of drying, it is enough to make Li Xuanzhu and Zhang Qi scream.

Therefore, by the time Shi Fu and Shi Tong came to Kelongli again, the two kilns and the watermill house had become unknown to them.

Looking at the mountains of cinders piled up outside the kiln mouth, Shi Fu smacked his tongue and said, "You two kilns haven't stopped fire, have they?" Burned so much coal?! ”

Su You put down the rhyme book in his hand, he has been doing his homework hard in the past few days, and he is making up for it: "Yo, Shi Lao is here?" Look at your happy face, the steel ball is done? ”

Shi Tong took out a small bag, found a plate, and poured out all shiny steel balls.

Su You took the vernier caliper and took a few measurements, and the errors were all within 0.1 millimeter: "Yes, your error is well controlled." ”

Shi Fu took out two ball bearings and put them on the table: "What's good, more than half is not good." Fortunately, it can be re-smelted, and the cost is coal. ”

The mouth is not satisfied, but the expression is very proud.

Su You didn't bother to debunk it: "Is the hardness of the steel ball qualified?" ”

Shi Fu said: "The hardness is good, and the oil used in the ball mill is quenched. ”

Su You picked up the bearing, stuck it with two fingers into the inner ring, and as soon as he flicked the outer ring, the outer ring of the bearing rotated rapidly.

The ball bearing is much less frictional than the roller, and the bearing can't be stopped for half a day.

"Great, let's put on my mule cart first."

Shi Fu hurriedly snatched the bearing back and hid it: "It's so beautiful!" The lathes in our iron mill haven't had time to change yet! ”

Su You pondered for a while: "This time the product rate is too high, by the way, my small furnace here can make fine steel, this time you come, we just transform the punch mold to improve the accuracy." ”

Shi Fu said: "The mold is secondary, the key is the measuring tool, and the accuracy of the measuring tool can be improved if it can be improved." ”

Su You touched his chin: "Shi Lao is right, the current technology has accumulated to be able to make another measuring tool." ”

Thanks to the gearbox technology, the machining of the lead screw has become very precise, so that the production of micrometers is possible.

Gather the children who are working, and today there is another very interesting math problem, which is embodied in the micrometer, and it is a good time to lecture.

On the wall outside the ancestral hall, water glass was also mixed with black charcoal gray clay, and a blackboard was brushed. ”

"Everyone already knows the principle of the lead screw, and after hard work, Shijia Iron Workshop has been able to control a circle of wire mouths, and the pitch is 0.5 millimeters in step step."

This counting unit is also made by Su You for his own convenience, and he makes up an integer by adding three small feet and ten small points, and combines them into one unit - meters, and then decimeters, centimeters, and millimeters, which are very convenient for various workshops and children.

"As you know, the principle of the micrometer is to use the compensation theorem to enlarge the scale to the sub-ruler and make the error accurate to 0.1 millimeter."

"The principle of the micrometer is also magnified, but the step of the thread is magnified to the circumference of the screw sleeve."

"A thread with a pitch of 0.5 millimeter will advance or reverse, as the sleeve turns in the sleeve. Divide the perimeter of the screw sleeve into fifty sub-compartments. The whole number of turns of the screw rotation is measured by the engraved lines at intervals of 0.5 mm on the sleeve, and the part less than one turn is measured by the engraved lines around the movable casing, and the accurate reading value is 0.01 millimeter, and the final measurement result needs to be estimated to one decimal place to reach 0.001 millimeter. ”

This principle is actually simpler than the micrometer, and the main process is to control the accuracy of the thread. The highlight of mathematics is the use of rulers to divide a circle into arbitrary equal parts.

If you don't know how to do it, it's not difficult, first draw the coordinate axis on the blackboard, then draw a circle with the intersection point as the center of the circle, take the intersection point of the circle and the left coordinate of the horizontal axis as the center of the circle, and the diameter of the circle as the radius, and then draw a big circle.