Show the sword, start from the guerrillas

When talking about the manufacture of mortar shells, we have to mention the fuse and explosives!

First of all, there is a special production plant for fuzes, which is far away from the shell production plant, so they will not be affected by each other. Moreover, fuzes are usually placed in fuze boxes, not together with shells, and are not installed on shells at all. This is for safety reasons, even if there is a safety latch!
When it is necessary to install the fuse, it is only when the position is set up on the battlefield and the enemy is spotted that a special soldier will open the shell box, take out the fuse box, install the fuse, and hand the shell to the second gunner, so that the firing can be completed. Everything is for safety, because you can't let your position explode before the enemy is blown up.

Of course, this is about mortars, and grenade launchers are a bit different. The first point is similar to mortars, the fuse is also placed in a box, but it is placed in a box and transported with the shell. The fuse will only be installed when it is needed in combat.

However, there is another situation. The grenades carried by the grenade launcher combat team are directly equipped with fuses and can be used in combat at any time. Of course, there is also a safety, which is the bolt. This is similar to the nature of hand grenades. Soldiers cannot be allowed to fight with grenades that cannot explode for safety reasons. This is really different from the mortar squad.

After talking about the fuse, let’s talk about the issue of explosives!
The sources of explosives for the Liangjia Village Arsenal are TNT and picric acid seized from the Japanese, and ammonium nitrate explosives made from the "fertilizer powder" obtained from the Japanese in the Jizhong base area. There is also another channel, which is to exchange materials from the Shanxi Suiyuan Army and the Central Army. For example, honey, cigarettes, and soap from the base area are all good things needed there.

In addition to these channels, the explosives produced by the explosives factory at the headquarters will be sent to the Liangjia Village Arsenal every month! In addition, there is granular black powder, but that thing is generally used for training bombs and militia grenades, and dare not be used in mortar shells and grenade launchers.

Well, I took great pains to make a cannonball, and fired it on the battlefield, and it exploded next to the Japanese. As a result, after a burst of black smoke, the Japanese's face was blackened, and then nothing happened... This won't do!
So it must be military explosives! The current standard for grenade launcher shells manufactured by Liangjiacun Arsenal is a rated charge of 100 grams. The ordinary version uses 70 grams of ammonium nitrate explosives, with an additional portion of potassium nitrate or wood powder to make up 100 grams; while the high-explosive version is pure ammonium nitrate explosives or TNT explosives, a full 100 grams.

The purpose of doing this is to make sure that when fighting and dealing with important targets, the weapon is powerful, effective, and can hit the target with one shot without holding back!

Now that they have 60mm mortar shells to produce, Li Yuexuan and Cai Xiaotian have adjusted the specifications of the grenade launcher grenades. That is, they will no longer mass-produce the high-explosive version of the grenade launcher grenades. They will only produce one or two additional batches when the special forces and quick reaction companies need them. As for ordinary infantry companies, they will be equipped with the normal version of the grenade launcher grenades.

Correspondingly, the newly manufactured 60mm mortar shells use 110 grams of TNT or ammonium nitrate explosives, with no other additives added. The goal is to have a clean, sharp hit.

No matter it is shells or cannons, the production standards have been set, and the only thing left is to produce them with all our strength! Because the forging and machining have been sorted out during the experiment, the production of the 60 mortar is not difficult. After the task is issued, the train axles are burned red, forged and cut, and then forged into the rough piercing of the 60 mortar tube, and finally put into the forging die for the final forming.

As soon as the rough blank cooled down, the comrades in charge of machining picked up the rough skin and put it directly on the lathe. Amid the flying iron chips, the blank of the mortar tube was processed into a rough-turned part shining with a silver-white light.

Then, the drilling machine drills holes, the lathe roughs out the inner hole, outer circle, and both ends, sends them for heat treatment, and finally fine-turns the inner circle... At the same time, the forging side completes the forging of the mortar base plate, the rough parts of the bracket are completed, and then the lathe processes them, and the fitter processes them again...

In short, with the production experience of 82 mortars and 120 heavy mortars, the comrades got started quickly. It was just a familiar process. At most, they made 10 workpieces and basically figured out all the tricks. Pay attention, in order to improve efficiency, everyone is doing "first-hand work".

What does it mean? The rough turning person is responsible for rough turning, and the fine turning person is responsible for fine turning. Everyone has their own duties, and the fitter is responsible for technical supervision and final assembly. Of course, the chief quality inspector is Li Yuexuan himself. Every afternoon, he will take a vernier caliper to conduct a detailed inspection of each product. Of course, the vernier caliper is just a look. His inspection method is to directly assist the panel scanning. It is clear at a glance where there is something wrong. He is a complete manual + intelligent inspector.

Nowadays, Li Yuexuan's life is very regular! In the morning, he follows the team to do a 5-kilometer cross-country run, then eats breakfast. After arranging the day's production plan with Xiao Fengyun, he takes the 60 mortar trainees for a morning of study and training.

In the afternoon, the mortar training was handed over to Shi Peican and his colleagues, while he took his comrades from the service team to visit every factory area, inspecting every batch of products and strictly controlling quality issues.

Then, there is the 5km run in the evening, meals, and daily evening meetings to discuss and solve all the problems of the detachment.

Of course, occasionally, Li Yuexuan would go to the training ground to watch the soldiers training, go to the shooting range to shoot a round to keep up with his skills, or go to the fields to see how corn and millet were growing.

In short, in such busy yet leisurely days, time passed little by little, and in a blink of an eye, three months had passed and it was September of 43.

During these three months, the Beishan Detachment was very quiet, and the surrounding Japanese did not make any noise, and it seemed as if all was well and peaceful.

But the leaders at the headquarters knew what kind of pressure northern Shaanxi faced during this period, and they also knew what kind of crisis we had overcome.

On June 6, Hu Zongnan went to Luochuan to convene an anti-communist military meeting, mobilizing six main divisions to deal with the Japanese invading army, plus hundreds of thousands of troops that had originally blockaded the Shaanxi-Gansu-Ningxia Border Region, and prepared to attack northern Shaanxi along Yichuan, Luochuan, Yijun and other places.

On July 7, the commander-in-chief of the Eighth Route Army sent a telegram to Hu Zongnan, calling for the avoidance of civil war and protesting the Kuomintang army's provocative behavior of invading the Shaanxi-Gansu-Ningxia Border Region. On the 4th, Zhu sent another telegram to President Jiang and Minister He, exposing the Kuomintang army's attempt to attack the Shaanxi-Gansu-Ningxia Border Region and calling for unity and persistence in the war of resistance.

Under the protests of the people in the liberated areas and the opposition of international public opinion, the National Government was forced to stop this large-scale anti-communist friction.

It can be said that if a war really breaks out this time, the situation of the war of resistance will collapse in an instant! (End of this chapter)