Zhang Wei ordered the production of blasting tubes, and everyone got busy.
He Kun led the baggage platoon to the black market and bought back the steel pipes.
The engineer platoon suspended daily training and began preparations for trial production.
The engineer platoon was all veterans, so the suspension of training was not a big deal.
As soon as He Kun's materials were shipped back, the trial production work started immediately.
He Kun spent a lot of money to buy something this time.
Seamless steel pipes are inherently difficult to make.
Those who can produce them on a large scale are the great powers and have high requirements for industry.
It can also be made domestically, but the production capacity is really limited.
The production capacity is basically used to supply mortars and grenade launchers for the arsenal.
Moreover, the supply has always been in short supply, and it is difficult to find them on the black market.
However, the teaching brigade was rich and powerful, and He Kun led a large number of people.
Under the silver bullet offensive, they finally found the seller.
The seller used to be a comprador, helping foreigners run business in the concession and dealing with the Chinese.
After the war, a large number of foreigners evacuated, so the seller took the opportunity to dump goods and bought various goods from foreigners at low prices, waiting for opportunities.
Many foreigners have set up factories here in China, bringing in a lot of building materials.
This guy happened to have a batch of seamless steel pipes made in the United States.
They were originally used to build buildings and build water network pipeline facilities.
As a result, the Japanese and China went into full-scale war.
Foreign investors did not want to muddy the waters in China.
After all, the war was in chaos. , life-saving was the priority, so this batch of building materials was transferred to this seller.
He Kun bought fifty six-centimeter blasting tubes and fifty four-centimeter blasting tubes from him according to Zhang Wei's list, as well as one hundred steel rods and one hundred sheaths.
It cost ten gold bars, which was quite a lot.
Buying in small quantities first, then purchasing in large quantities after the production is mature, is Zhang Wei's current thinking.
The baggage platoon pulled back the purchased items, and the entire engineer platoon, together with Zhang Wei and He Jinhai, devoted themselves to the trial production of the blasting tube.
On the other side of the training ground, the infantrymen were undergoing physical training, while the engineer platoon was working in full swing.
In front of Zhang Wei, the purchased steel pipes were neatly placed.
The first thing the soldiers of the engineer platoon had to do was to dismantle and assemble the explosives.
The explosives they had distributed needed to be broken into small pieces before they could be placed in the explosives.
"Captain, it's best to use as many explosives as possible to dismantle them, otherwise the effectiveness will be affected.
How many explosives should we dismantle?"
He Jinhai asked, looking at the explosives in front of him.
"How many kilograms does our box of explosives weigh?"
Zhang Wei said.
"A box of explosives weighs about twenty-four kilograms."
"Twenty-four kilograms, our blasting tubes are loaded with three and a half kilograms of explosives, and the small ones are charged with two kilograms.
One box of explosives can hold eight large blasting tubes and twelve small blasting tubes.
In this way, you let the brothers have different sizes of blasting tubes.
Load twenty of them and they will be ready soon.
Follow my orders to test-explode one batch, and keep another batch for storage."
"Okay, I'll give the order now."
He Jinhai said with a hint of excitement.
Due to the backwardness of military and military education, He Jinhai had never been exposed to blasting tubes.
He learned about it entirely through Zhang Wei's narration.
Now he wants to really After manufacturing and trying it out, he couldn't wait to see the blasting effect right away.
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He Jinhai passed on Zhang Wei's order, and the soldiers quickly started to operate.
In terms of manual work, veterans like the engineer platoon were better at it.
Zhang Wei planned to make 20 large and small blasting tubes each and store them.
Conduct a test explosion.
Zhang Wei and He Jinhai refined the drawings, and He Jinhai took the drawings and explained them to the soldiers in the engineering platoon with physical objects.
Most of the soldiers in the engineering platoon were illiterate, and only a few of them could read.
It was impossible to give them the drawings and follow the drawings because they could not understand them at all, so the platoon leader He Jinhai had to explain it to them.
The teaching brigade was completely hand-made and should not be too rough, especially the small holes in the blasting barrel. , once the hole is too small when fighting begins and the steel rod cannot be inserted, it will be tragic.
But the most important thing at the moment is to conduct test blasting of the blasting tube.
The soldiers first broke the two boxes of explosives into small pieces and put them into steel pipes.
Before loading the explosives, all the steel pipes had holes for possible connections.
The soldiers loaded the explosives and then put the explosives inside.
Press and compact.
The next step is to install fuzes, leads and detonators.
The veterans are very skilled at playing with these things and can be completed in a few moments.
It takes about half an hour to make a blasting tube.
Installing explosives and detonator leads is not too time-consuming. , what really takes time is to drill holes in the steel pipe.
The engineers worked very seriously.
He Jinhai told them that these blasting canisters were for his own use.
If you don't want to be blown up by your own equipment, just work hard, so the work efficiency is very high.
It took one platoon more than two hours to complete the project.
Forty blasting tubes of various sizes were completed in a hurry, and two boxes of explosives were used.
To be fair, although the blasting tube is simple to manufacture, it is not easy to build it well.
The Type 98 blasting tubes equipped by the Japanese army are the same as the various blasting tubes equipped by the foreign military.
They are equipment produced in industrialized countries.
They are flexible in combination and standardized.
Yes, these for the teaching team are purely handmade.
It is easy to put explosives into steel pipes, but it is difficult to ensure the smoothness of the combination and use on the battlefield, as well as the storage ability of the blasting tubes.
The Japanese army's standard blasting tubes have all kinds of perfect measures and can adapt to various battlefield environments. .
These handmade products of the teaching brigade are not standardized, making it even more difficult to ensure quality control and quality.
Zhang Wei planned to test-explode a batch to check the power, temporarily seal the rest, and then blast them again after a period of time to see what problems would arise.
Explosive tubes need to be mass-produced.
It is too late to rush the work before the war starts.
They must be kept in stock at ordinary times.
Therefore, the explosive tubes of the teaching brigade must be usable and preserved to ensure that enough explosive tubes can be supplied to the troops during the battle.
The forty finished blasting tubes were not painted and looked like forty steel pipes, twenty short blasting tubes, and twenty long blasting tubes.
After He Jinhai and the engineers finished making the blasting tube, they lined up aside, waiting for Zhang Wei's order.
"Pull out ten of each large and small blasting tubes and prepare for trial blasting.
The others are sealed in empty explosive boxes and sent to the ammunition depot for storage," Zhang Wei ordered.
"Captain, where should we test the explosion, and what kind of fortification should we use to test the explosion?"
The best way to test the power of the blasting tube is to see its ability to destroy fortifications, so there must be a "test explosion" environment and conditions.
By seeing the impact of the blasting tube on different The degree of damage to the fortifications is used to determine the power of the blasting tube, which will also be beneficial to future operations.
With advance preparation, soldiers can skillfully choose the number of blasting tubes to use for different fortifications.
"Use the bunker to test the explosion.
Let the brothers work harder and build two semi-hidden bunkers.
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Put up more sandbags and wood to make them stronger.
Use the blasting tube to test the explosion, and then use an ordinary trench to blast again."
Based on Zhang Wei's combat experience, the Japanese military fortifications that he had the most contact with were the Japanese semi-concealed bunkers.
Using them for experiments was more targeted and had the greatest value for test explosions
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