my scientific age

Chapter 245 It belongs to the dimension reduction strike in the field of barrel processing!
Mechanical Hall, Mechanical Engineering Laboratory.

Yu Hua, who was warmly invited, saw a new type of vertical drilling machine, which has been condensed by Zhuang Qianding, a top mechanical expert for more than ten days. This vertical drilling machine is 7 meters high, with a hole diameter ranging from 14 mm to 800 mm, and a maximum drilling depth. Up to [-] mm, mainly used in deep hole drilling.

In fact, it is not appropriate to judge this vertical drilling machine as an ordinary vertical drilling machine, because this vertical drilling machine integrates the concept of a deep hole drilling machine and can perform almost the most difficult deep hole processing in the field of drilling processing.

From a practical point of view, deep hole machining has always been the biggest difficulty in the field of drilling. There are various reasons, mainly for three reasons: one is high temperature, the other is the difficulty of chip removal, and the third is the easy deviation of the drilling axis.

In order to solve the difficulty of deep hole drilling, the machining fields of various countries have developed deep hole drilling machines specially used for deep hole processing, and even highly professional gun drilling machine tools.

Whether it is a deep hole drilling machine or a gun drilling machine, it belongs to the high-end machining equipment that is highly controlled by various countries, and will never be sold out easily.

The deep hole machining solution proposed by Yu Hua based on lathes was able to allow Professor Zhuang to write three papers because it solved the problem of deep hole machining to a certain extent.

Although a lathe is not as good as a professional drilling machine, it is really much better than nothing.

The biggest highlight of Professor Zhuang's new vertical drill is the integration of the concept of deep hole drilling machine, adapting measures to local conditions, and meeting the needs of deep hole processing to the greatest extent.

What are the advantages of vertical drilling?
The axes are consistent, and the positioning accuracy and machining accuracy are high.

After integrating the concept of deep hole drilling machine, this vertical drill has been transformed into a high-precision vertical deep hole drilling machine.

Since it was just born, the columns and various structures of the whole drilling machine can still see welding marks like fish scales.

Yu Hua looked at the silver-white drilling machine still in the state of metal structure, and was full of admiration and shock. This new vertical deep hole drilling machine is really awesome.

Its function and significance lie in solving the most important barrel processing in firearm manufacturing and improving processing efficiency.

Only for efficient drilling of barrels, highly professional.

Concise, practical, contains unique mechanical beauty, and embodies the blood of self-manufacturing.

This is made in china in 1937.

"Professor Zhuang, I think this new vertical drilling machine should be renamed as a vertical deep hole drilling machine. I think it has only one thing to do, to process the barrel with maximum efficiency." Yu Hua, who fully understands the relevant parameters of the entire drilling machine , said to Professor Zhuang, sending his admiration and admiration, and giving his personal opinion from the heart.

"Vertical deep hole drilling machine... the name is really good." Zhuang Qianding heard the words, considered it, and nodded in agreement.

Yu Hua asked, "Professor Zhuang, what is the processing efficiency of this vertical deep hole drill for barrel blanks?"

"If it is an official rifle, a single machine can process more than 35 barrels per day. If it is a skilled worker, it can process up to [-] barrels per day, which is an order of magnitude higher than the efficiency of gun barrel processing equipment in the Gongxian Arsenal. Only two machines are needed. This type of deep hole drill can be equal to the output of gun barrels in Gongxian Arsenal in January."

Professor Zhuang gave the processing efficiency data with a smile, and pointed to a pile of processed barrel blanks next to him: "I have already experimented with this data, and it basically matches."

Fifty per day!
A single piece of equipment can be as high as [-] pieces a month, which is the processing efficiency of a professional deep hole drilling machine.

What is the concept of this data?
Gongxian Arsenal has introduced hundreds of foreign machines and equipment just to increase the production of weapons. Among them, the Chinese-made rifle production line is the most eye-catching.

However, the monthly output of the official rifles in China is not optimistic. Aside from the variable factors of corruption of the arsenal management and unfamiliar skills of the workers, in terms of production efficiency, the average monthly output in 1935 was about 1800, and the average monthly output in 1937 was 2500.

In two years, the rate of improvement in production efficiency was pitifully low.

There are many reasons for this, but one of the main reasons is the low processing efficiency of machinery and equipment.

As an expert who has visited Gongxian Arsenal, Zhuang Qianding is very aware of the processing efficiency of the other party's gun barrels. There are dozens of machinery and equipment and hundreds of workers in the entire workshop, and the output of gun barrels is only about [-] barrels per day.

One side is fifty per day for a single machine, and the other is eighty per day for the entire workshop. This is the productivity change brought about by technology.

"Amazing..." Yu Hua smacked his tongue secretly, but even though he was already prepared, he was still stunned.

A single set of fifty guns, if ten sets of this new vertical deep hole drilling machine are put into use, it can process a full [-] barrels per day, with a monthly output of up to [-].

The number of [-] may not be a big deal to the world's major industrial countries, but to today's China, it is really like an astronomical number, unimaginable.

Taiyuan, Hanyang, Gongxian, and the combined monthly output of the three major domestic arsenals are all less than the data level of ten vertical deep hole drills.

Horror!
However, there is one thing to note, the barrel processing is divided into drilling and rifling.

The barrel blank that has been drilled is not a barrel in the true sense, and it must be rifled to be regarded as a barrel in the true sense.

"After I went back that day, I was thinking about how to improve the efficiency of deep hole machining while writing my thesis. Although the machining plan of the lathe you gave is very good, it still lacks in efficiency. In the end, I came up with this vertical deep hole machine. Drill, Yu Hua, you are partly responsible for its birth." Zhuang Qianding looked at the vertical deep hole drill, which was renamed after birth, and smiled like a father.

"I don't have the skills, Professor Zhuang, what are you going to do next?" Yu Hua shook his head and looked at the vertical deep hole drill with advanced technology. In a few days, it will be July, and then the Lugou Bridge Incident will break out. , If this vertical deep hole drill falls into the hands of the Japanese...

The consequences cannot be assessed.

Yu Hua doesn't know the technical level and craftsmanship of Japanese manufacturing. If Japanese manufacturing has such a professional and high-efficiency deep hole drilling machine, it is good to say, but if it does not, it will be great fun.

One thousand vertical deep hole drills can process 35000-50000 barrels per day, with a theoretical annual output of 1200 million to 1800 million.

Even if the Japanese can't fully tilt their limited steel production and metal resources to rifle production, even if the actual production is reduced to a quarter, it is terrifying enough.

What is the total output of Type [-] rifles?

In 40 years, there are only more than 300 million pieces, with an average annual output of 7.5 pieces.

With the data, we can understand how efficient the vertical deep hole drilling developed by Professor Zhuang is.

This is almost a dimensionality reduction blow in the field of mechanical deep hole machining in 1937.

"How to do it? I don't know... I was going to tell the Gongxian Armory Factory this news, but I was afraid that the Japanese would know about it as soon as it got out." Professor Zhuang Qianding shook his head slightly and sighed.

(End of this chapter)