In the following time, Captain Huang Zu specially organized a team and asked them to repeatedly test the launch of rockets so that they could master the launching skills...... This can only be practiced in practice. Pen ~ fun ~ pavilion www.biquge.info

Previously, Zhang Guoandao led them to process the rocket, and then after explaining the precautions, let them test fire with the processing belt and practice their own hands.

The cost of such a rocket is about nothing, of course, the manual cost of the craftsman still has to be calculated, especially the bazooka leather ...... Copper skin is the best to process, but it is more expensive; Iron sheet is the cheapest, but it is cumbersome to process.

In order to solve the problem of iron sheet processing, Zhang Guoan, the owner of the island, could only go out in person.

He had previously left homework for the Great Song Dynasty craftsmen, asking them to find a way to turn the vertical linear motion of the vacuum steam engine into a circular rotational motion, and this problem was quickly solved by the Great Song Dynasty craftsmen.

At this time in the Great Song Dynasty, the folk had long been a simple lathe called "rotary work", which was dedicated to metal cutting and processing, which was a milestone in the history of human machining.

They also invented the cam long ago and applied it to heavy-duty chains that were hydraulically lifted.

The cam is also a mechanism that can turn vertical linear motion into circular rotation.

But after the Great Song craftsmen of Badaohe tried it, they immediately gave up this method.

The reason is very simple, the cam and the follower are only point or line contact, easy to wear, only suitable for the occasion of small force transmission, and the stroke of the follower can not be too large, otherwise the cam will become bulky, more importantly, the cam profile accuracy requirements are higher, and they need to be processed repeatedly.

Compared to the crank shaft, this is too much work.

During this period, a large spinning wheel was popular, and its structure was composed of three parts: twisting and winding, transmission and prime mover. The prime mover mechanism is a large round wheel similar to the rope wheel of a hand-spinning wheel, and the axle is equipped with a crank, which needs to be shaken by a special person.

So, they didn't have to go through any trouble when it came to designing the crank shaft.

The craftsmen of this plane have at least three transmissions, gears, belts, and chains......

Europeans did not start using chain belts until 1770. It was about 800 years later than the Great Song Dynasty.

In fact, the water-powered spinning machines and looms of Zhang Guoan's island owners did not shock the craftsmen of the Great Song Dynasty at all, and there were many water-powered spinning wheels at this time, of course, the complexity of the structure could not be compared with his spinning wheels.

In the late Song Dynasty, there was already a large spinning wheel driven by water, which was mainly used for processing hemp yarn and silk, which was the most advanced textile machinery in the world at that time. More than 100 catties of linen yarn can be spun in a day and night.

To say a word of gossip, if you are curious, search for the words of the waterwheel in the poems of the Great Song Dynasty. It appears much more often than in later generations...... So what makes this nation's machining technology develop in a downward trend? You know.

Therefore, Zhang Guoan, the island owner, will never let the Tatar bandit group destroy the Great Song Dynasty!

Humans sometimes succumb to barbarism, and sometimes entire societies are milked by wolves...... However, there will always be a glimmer of light and conscience leading humanity back to normalcy!

Zhang Guoan "invented" the hot-rolled steel plate equipment, and he designed three sets of main roller continuous rolling mills according to the power limit of two vacuum steam engines...... It adopts non-powered roller belt conveying, and combines human-animal hybrid traction.

The precision casting and grinding of these three sets of main rollers are quite laborious and time-consuming, in terms of uniform quality and surface polishing. The craftsmen of the Great Song Dynasty spent half a month.

Of course, it is much more complex than the structure of a continuous wire drawing machine.

However, this equipment is completely within the comprehension of the craftsmen of the Great Song Dynasty. They even offer to help adjust the center of gravity and roll backlash...... Director Hu Zhenbei stared at this hot-rolled steel plate equipment for a long time and said: "If it is set up, isn't it just right to crush stones?!" You don't have to break them all up......"

Zhang Guoan, the owner of the island, said happily: "However, the process of your precision casting and post-processing is too slow...... Think about what else it can do? ”

Director Hu Zhenbei thought about it for a long time and didn't say anything.

Zhang Guoan, the owner of the island, whispered: "Squeeze sugar ......"

"Oh, crush the sugar cane! That's a lot of work. The rollers don't have to be so big......"

Zhang Guoan, the owner of the island, nodded and said: "In the end, it depends on your processing level, and you can't just have ideas." ”

This so-called hot rolling mill makes the processing of steel or copper sheets relatively simple.

For the processed plates, Zhang Guoan first asked the craftsmen of the Great Song Dynasty to make utensils such as buckets or kettles...... He was so tired of carrying water in a heavy wooden barrel or boiling it in a copper kettle.

In order to prevent rust, he had the craftsmen tin plating directly after the fabrication.

Gold, silver and tin or lead plating have been around for thousands of years, but using the hot-dip method.

For example, gold plating. The ancients took advantage of the good physical properties of gold, synthesized gold amalgam with mercury, and then applied it to the surface of copper, and then evaporated the mercury through heating, and the gold adhered to the surface of copper, brilliant and dazzling.

Tin plating is easier.

The melting point of tin is only more than 200 degrees, and after dissolving into a liquid, it can be plated whether it is soaked or smeared.

Zhang Guoan, the owner of the island, also plans to use tinned iron sheet as canned food, because tin iron sheet is harmless to people and is originally a food-grade product.

Of course, it is also very suitable for using it as a bazooka body, because it is more resistant to corrosion, and it can be reused for a long time, but it needs to be equipped with black fire/powder engine and explosives from the combat parts......

Captain Huang Zu was a little reluctant to use the tin iron sheet on buckets and kettles for Zhang Island, and he said, "How good it would be if it was made into armor?!"

The owner of Zhang Guoan couldn't help but smile, he thought of the canned man, and said, "Isn't it more shiny to be plated in silver?" ”

Captain Huang Zu suddenly thought about it and said, "Exactly! It is very powerful to wear on the body. ”

"Pull it down, you lose your flexibility and fall into the water and drown."

“……”

In the end, the owner of Zhang Guoan Island designed them with assembled armor linings, as well as military hats lined with large circles and iron belts, which could prevent stray arrows from shooting at the door and neck as long as they bowed their heads on the battlefield.

This set of outfits is ready to be used on the real battlefield, and it is not needed yet, so Zhang Guoan, the island owner, is not in a hurry to equip the whole team immediately.

He asked Captain Huang Zu to deeply understand the meaning of special operations, although he had never been a soldier himself, and only learned a little bit about it from movies and novels...... But it's completely instructive.

The more Captain Huang Zu listened to it at that time, the more he understood, and with the cooperation of the good object of the rocket, he completely understood what Zhang Daoist meant.

Captain Huang Zu immediately wrote another combat report.

Probably the content is that they first went to the vicinity of Huangdao, repaired on the island built by Yao Mai, and then took advantage of the night with a bright moon to go to the Mizhou area.

They didn't have to go ashore near the Mizhou shipyard, they could stay farther away, and in the early hours of the morning, just before the sea breeze rose, they set up the rockets, and they just had to shoot them continuously.

That distance has already been stated in the intelligence.

In fact, they have also tried to launch on a sea ship, you can put the rocket launcher on the side of the gunwale, and when launching, you can let the tail flame rush towards the sea...... Zhang Guoan, the owner of the island, did not stop their attempts at all.

The results can be imagined...... In the sea breeze, it doesn't know where to fly except for not hitting its own boat.

Zhang Guoan, the owner of the island, thought at the time that if this could be used in naval battles, it would be impossible to desperately develop naval artillery in the future world. (To be continued.) )