As soon as he got to work, Jiang Yan began to get busy.

A complete set of automobile engines is divided into intake manifolds, intake valves, pistons, crankshafts, generators, tensioners, crankshaft pulleys, timing chains, throttle valves, spark plugs, oil pans, connecting rods, exhaust camshaft sprockets, exhaust camshafts, exhaust manifolds and intake camshafts, etc., and there are thousands of parts to be manufactured.

These parts, large and small, require Jiang Yan to draw more than 80 drawings in total. Each drawing should be detailed with specific dimensions and parameters, and some even indicate the manufacturing method and the required material.

More precise gears, because there is no more precise lathe, can only produce rough embryos, the rest have to rely on manual rubbing.

When I came over today, Director Liu told himself that they had transferred a large number of fifth- and sixth-level workers from other factories, and a few eighth-level workers. They obeyed Jiang Yan's arrangement with all their might.

If there is no difficulty in the production process, then the manufacturing is quite fast.

Since these drawings had been imprinted in Jiang Yan's mind, the speed of drawing was quite fast, but it took Jiang Yan almost a day to draw them all.

Looking at the drawings that had been drawn in his room, Jiang Yan stretched his waist and moved his somewhat stiff neck. I just picked up the phone on the table and called it.

"Uncle Liu, I have drawn all the corresponding drawings, and my opinion is to send all the eighth-level workers to manufacture the mold first."

Generally, the engine block is made of cast iron, because the cast iron has good corrosion resistance and rust resistance, and also has good wear resistance, good cylinder strength, compressive resistance and not easy to deform.

It mainly uses one-time pouring molding, and the mold is particularly important, which is directly related to the success or failure of shaping the cylinder.

Engine block mold, which includes several aspects such as upper template, lower template and positioning mechanism. These drawings were naturally also drawn by Jiang Yan.

"There is no problem on my side, I will deploy how many workers and materials are needed, let's meet in a workshop."

After saying this, Director Liu hung up the phone directly.

Jiang Yan looked at his watch, there is still an hour before he gets off work, if he starts processing now, obviously he can't finish it when he gets off work, it seems that he will have to work overtime tonight.

Jiang Yan took the drawings that had been drawn and walked towards the first workshop with Xu Damao.

Before the 50s of the 20th century, China's industrial base was very weak, and most of the industrial products could not be produced by themselves, so there were very few molds needed, and there was no mold industry and mold technology. At that time, only a few enterprises could imitate a small number of molds needed in China, mainly relying on mold fitters to manufacture some simple molds with their personal skills.

After the 50s, with the arrival of the climax of national economic construction, the molds required for the production of various industrial products are increasing day by day. At that time, the processing was mainly based on foreign mold patterns, and most of them were single-process molds, simple composite molds, progressive molds with few processes, and plastic compression molds with off-machine demoulding. With the development of international economic and technical cooperation and exchanges, foreign mold technology books, mold design manuals, mold manufacturing materials, etc. have been gradually introduced to China, which has played an important role in guiding and promoting the development of mold technology.

At the same time, the introduction of some special processing equipment for manufacturing molds, such as large-scale copy milling machines, coordinate boring machines and other equipment, has laid a certain material foundation for the manufacture of large-scale molds.

"Jiang Gong, let me introduce to you, these are the eighth-level workers I invited from other factories, this is Daniel Zhang Master Zhang's eighth-level fitter, Chen Lei Chen's eighth-level blacksmith, Li Zhiwei's Master Li's eighth-level welder."

Looking at these eighth-level masters, Jiang Yan was full of respect, these people are the existence of the legendary aircraft carrier with their bare hands, and in each of their jobs, they are a generation of grandmasters.

After Mr. Li introduced these eighth-level masters, he also introduced several other seventh-level and sixth-level masters.

Jiang Yan smiled and greeted these technical masters.

Then Director Liu pointed at Jiang Yan and said: "Masters, this is Jiang Yan, Jiang Gong, don't look at his young age, he is the first batch of students to study in SL after the establishment of the country, and he obtained the engineer certificate of SL during his study abroad, and is currently serving as the chief engineer of the third rolling mill temporarily transferred by his superiors to assist us in the public relations of automobile manufacturing. The drawings of the entire car engine were drawn by him. ”

Originally, these people were a little disapprehensive when they saw that Jiang Yan was relatively young, but when they heard Director Liu say some basic information about Jiang Yan, their eyes were full of respect for him.

People who are engaged in technology understand that the gap between the domestic technical level and foreign countries during this period is still very large, so the difficulty of the domestic engineer certificate is much lower than that of foreign countries, and even so, there are very few people who can get the engineer certificate every year, not to mention the engineer certificate of the big brother SL.

Wait until Director Zhang introduces you to each other. Jiang Yan directly spread out the drawings, pointed to the drawings and said: "Masters, these are the drawings of the mold, and in the next time, Jiang Yan introduced the relevant parameters on his drawings in detail, until all the masters figured it out." ”

After figuring out the parameters and requirements on the drawing, Daniel Zhang, an older eighth-level fitter, opened his mouth and said to Jiang Yan: "Jiang Gong, there is no problem, you can see!" ”

Hearing Daniel Zhang's words, Jiang Yan instructed Xu Damao to distribute all the drawings to the hands of the corresponding personnel, while Jiang Yan and Director Zhang waited for the parts to be completed.

In order to produce engines this time, Director Zhang deliberately vacated the first workshop, and according to Jiang Yan's requirements, he also got a lot of equipment for making engines, and in order to water the cylinders, he also specially built a small furnace.

The waiting time was also extremely boring, and Jiang Yan was also curious about the working status of the eighth-level worker, so he came to the lathe.

As soon as this expert made a move, he knew whether there was any, looking at Daniel Zhang's operation of the machine tool to make the template of the blank, the action was quite silky, especially when the knife was received, without the slightest hesitation, he knew all this in his chest.

After watching Daniel Zhang's operation, Jiang Yan went to other people to see how they operated, and I have to say that this worker's craftsmanship is really good. In their hands, one by one, the parts were lined up, and then they began to polish again.

"Jiang Gong, it's okay here." Hearing that someone had finished it, Jiang Yan walked over with the measuring tool in his hand.

Jiang Yan took the tool and measured it, and the parts made were exactly the same as the parameters of his own drawings.

"High-quality, the size is qualified, the craftsmanship is good!"

Hearing Jiang Yan's praise, the fitter master was quite happy, scratched his head honestly and said, "Hey! We craftsmen don't rely on craftsmanship to eat, but the craftsmanship of this meal is sloppy. ”

Then the parts were manufactured by the workers one after another, and the manufactured parts were sent to Jiang Yan for testing.

This vote of workers is not a loss are all senior workers found by Director Liu, this craft is really not to say, almost all the parts produced are high-quality.

Jiang Yan assembled the manufactured parts according to the drawings, and after assembling, Jiang Yan re-measured it, and the product was still qualified, and there were almost no gaps.

(End of chapter)