"The old high-pressure boiler used wrought iron pipes. A fat man squeezed over, "I have dismantled the antique boiler in our factory, there is no steel, it is all soft iron." The fire pipe inside is made of wrought iron. ”

"Who are you?" Wang Luobin was stunned for a moment.

"I'm Xiao Gui, from the machinery factory." The fat man looked very helpless, and the leader didn't recognize him, which was not a good thing anyway.

"Do you think there's a problem with replicating a high-pressure boiler?"

"It's not a big problem. It's just that there are a lot of new hands here, but there are few skilled hands, and the work is not very good. In my opinion, start with a simple Lancashire boiler and let everyone practice - after all, Master Zhou's riveting work is also a novice, and it is not easy to make an accident if you build something with low requirements first. Xiao Gui said very conservatively, but he didn't seem to care at all.

"Okay, let's copy two Lancashire boilers first, and then build high-pressure boilers when you are familiar with your hands." Wang Luobin said.

Solving the boiler problem is equivalent to solving half of the steam engine problem. The key component of the steam engine is the cylinder, which is quite a test of the level of industrial processing. The cylinder is actually processed by a boring machine, and the quality of the cylinder directly affects the actual output power and safety of the steam engine.

The machine factory used to process artillery. The body tube has accumulated a considerable amount of experience in the use of large boring machines. This time, I didn't encounter any jishu problems in manufacturing cylinders.

The first steam designed and built by the Traverser. The "Mozi I" is a horizontal steam engine powered by a Lancashire boiler, with a cylinder with a steam jacket on a cast iron base, and the chute and base are cast in one piece, and drilled holes. The crank pin is connected to a suspended crankshaft plate, and the outer end of the crankshaft is supported by a separate bearing. The regulator automatically adjusts the degree of expansion according to the load of the machine. There are two main spool valves and expansion valves driven by eccentric wheels on the crankshaft. With a diameter of 311mm and a stroke of 560mm, it produces 50 hp at a steam pressure of 4 kg per square centimeter and a speed of 95 rpm. This level is already on par with the power of the low-power pot camel brought by the traversal - of course, the pot camel machine does this at the level of the smaller boiler volume.

If you want to expand the horsepower directly the cylinder. Enlarge the diameter and increase the stroke. By expanding the cylinder diameter to 560mm and the stroke to 1000mm, the output power of the steam engine with the same structure can reach 185 horsepower, which is enough to meet most industrial applications.

Boilers and steam engines use low materials except for a few components. Carbon steel, the rest is either pig iron or wrought iron - well suited to the metallurgical level of the traverser.

"There's a lot of room for improvement." Xiao Gui looked at Xiao Bailang's painting. "For example, replace the spool valve with a drop valve, or simply use a cylindrical swing valve - this has to be said in terms of material and processing level."

"The level of processing is no problem, we have so many modern machine tools, and there are professionals."

Xiao Gui smiled: "This. No one has done any work, so it's better to be careful. Gradual. Boilers, steam engines, if something happens, it will kill people. Everyone has worked in the factory, don't forget about safe production. ”

"That's right, if you are not careful in the factory, you will be injured at any time. Today's apprentices are better, and the children are more receptive, but the adult workers don't pay much attention to it, and they think that we are making a big fuss -- sooner or later we will have a work-related injury. Jiang Ye thought so.

"There is no way, without the lesson of blood, people can't remember." Zhan Wuya sighed and said, "Don't say much about this. The policy of our production equipment is: step by step, small steps, and continuous improvement. Anyway, the production of jishu is repeating the old road that the predecessors have taken, and the improvement of jishu is based on evidence, and it will not take detours. ”

Starting from the simple equipment of jishu, gradually improve the jishu content and processing difficulty of the equipment, so that you can quickly climb the science and technology tree, and avoid the risks brought by the development of the great leap forward.

Even very simple and primitive equipment can play its important, even indispensable, role at this stage, such as the steam engine, at this stage is much more important than the diesel engine.

The production of boilers and steam engines is the key to the great cause of crossing. No one dared to slack off, Ma Qianzhuo ordered the Planning Commission to unconditionally approve all the materials and energy applications sent by the Industrial and Energy Commission, and Wu De also patted his chest and said how much manpower he wanted. Lingao Construction Corporation organized surprise construction and built factories.

Although there are many different types of factories in Jihua in the past five years, most of them are actually just workshops in the Bopu Industrial Zone. The layout of the industrial zone has been planned in a general manner to make full use of the space and concentrate on the various pipelines. Concrete sidewalks and simple rails for transporting goods are paved between workshops and warehouses.

Of course, this kind of track cannot run a train, but two rolled wrought iron bars are directly inlaid and laid on the concrete floor, and the bearing capacity is not large. Originally, the mechanical group was prepared to use hardwood tracks, but considering the climate of Lingao, which is easy to decay and damage in the rainy season, wrought iron was still used, which was cheaper than steel and tougher than pig iron cast tracks, which was the main material used for early railway tracks.

Originally, Zhan Wuyan designed this kind of track to imitate the simple mode of transportation between workshops in his previous life - he worked in the paint shop for a while, and the large workpieces were loaded on a flatbed truck and pushed from the previous workshop along the track. It saves manpower and time, and has high efficiency.

However, the train party members who crossed the middle of the crowd couldn't help but feel spring when they saw the track, and under the joint letter of the cadres, the executive committee was finally moved, so the simple track between the workshops became a complex "track system".

In the new scheme, the length of the track has been greatly increased, and the scope of the connection is also more extensive: from Bairen City, Farm, Dongmen City, to the hydropower station on the bank of the Wenlan River, the inland wharf, Bairen Commune, and all the way to the workshops, warehouses and office buildings in the factory area. It can not only transport a variety of equipment, raw materials and goods, but also transport people. The track is equipped with a switch and an auxiliary rail at certain distances to allow vehicles to avoid each other.

In order to grasp the running status of the vehicle, it is convenient for scheduling. It also built a high platform as the main console, installed a wired telephone, lighting control system, in an emergency, you can also use a set of bunting visual system or directly connected to the broadcast, with loudspeaker control.

"Mr. Wen, this is a few vehicles that we have designed for rail transit." In the vehicle workshop, Li Chiqi, who is the director of the workshop, introduced several flatbed trucks parked under the shed to several key members of the executive committee. As a young man with a mechanical and automation major, he can be in such a critical position first of all because his profession is basically useless, and he can spend his time on the tedious administrative work of the leadership position - like Jiang Ye, Zhou Billy, Xiao Gui, these people who have jishu in their hands, are too busy to tackle jishu research, design and process products every day.

Of course, another reason why he is the head of the vehicle workshop is that he is a veteran model player, and he is particularly sophisticated and fully in-house vehicle models - which is the closest thing to vehicle manufacturing. Since its birth, the vehicle workshop has lived up to expectations, refitting more than a dozen trolleys, manufacturing and refitting the first two-wheeled freight carriages, and recently producing the first four-wheeled carriage "Hongqi" type that crosses the public.

Wen Desi and the others looked at the several flatbed railcars under the shed, they all looked plain, no different from the small flatbed railcars used in the factory in their memory. It's just that the vehicle in front of me is made of more wood.

"It's a basic flatbed truck." Li Chiqi was wearing a black overalls, and he was a fat man with short curls and small eyes—he hadn't lost weight for so long since he arrived in Lingao, but he had become unusually strong.

"The maximum load of this flat plate type is 5 tons. No power, KAO human propulsion, horse traction or motor vehicle traction. If further improved, it is not difficult to achieve a load of 15 tons. ”

"Motor car traction, what power?" Ma Qianzhuo became interested, and he remembered that the rail flat cars used in this kind of car were generally electric. Of course it's not possible here.

"Well, we have developed several models of EMUs, and the specific ones to be selected should be evaluated by the Labor and Energy Commission." Li Chiqi said, "On this basic model, we have designed a variety of detachable modification kits, including tank truck transportation type, bulk cargo transportation type, ultra-long piece transportation type, etc., and different kits can be installed to achieve different functions." ”

"That's a good design idea." Wen Deji agreed.

Ma Qianzhu was not very relieved: "Is there a problem with the vehicle bogie?" ”

"There is no problem, this difficulty was overcome when we developed the Hongqi carriage." Li Chiqi is confident, "One of the main problems that limits the load of vehicles is that the actual situation of the track load is uncertain. ”

Wen Desi waved his hand: "No problem, the British used wooden tracks and horses to pull can transport several tons of coal in one car, not to mention that our rail transit is still built with concrete and steel materials." ”

"This is the second model: a self-propelled flatbed." The second model introduced by Li Chiqi is exactly the same as the basic cargo type, except that there are four seats at the four corners of the flatbed, and there are some chain wheels and other things under the seats, and there are pedals under each seat - apparently it is a KAO rickshaw to travel.

"That's good, but is there enough drive for four people to ride a bike?"

"It's enough, it's fast when it's empty, and we put brakes on it. It's hard to start when it's fully loaded. "Li Chiqi has already done shiyan, loading a lot, if there is no external force to help start, the four people in the car will not be able to step on the pedal no matter what," about a dozen people push together to start, after starting, you can kao pedal pedaling. ”

Do you have to prepare 10 people to be the starters? Obviously, this type of vehicle can only be used as a transport vehicle or to transport light objects