In terms of manufacturing quality, the quality of the fuzes made by the naturalized migrant workers is not worse than that made by the veterans, and the difference in the firing rate is negligible

As for safety, it has been tested to hit the ground from a height of 12 meters without pulling out the safety pin, so as not to accidentally ignite

However, the ordnance team is not simply satisfied with this - in addition to meeting the functional requirements of any industrial product, there is also the need for material cost control and the organization of large-scale production, fuses as consumables, and it is necessary to produce phosphor bronze springs as cheaply and easily as possible, although they can be produced by themselves, but in the industrial system of Lingao, it is a kind of "high-level precision parts", which belongs to the "second-level control materials" of the Planning Institute

At present, phosphor bronze springs are mainly used in more sophisticated industrial equipment, such as timers and instruments that Dr. Chung has been working on – which are expensive to produce

It is best to replace Lin Shenhe with inferior and easy-to-obtain materials, and after thinking about it again and again, he found Zhan Wuya and asked him if he could heat treat wrought iron wire?

"Of course, but what do you do with heat treated wrought wire?" It's strange to have no end to it

"Make springs - used on shell fuses"

Zhan Wuya glanced at him in disbelief: the spring used on the fuse of the cannonball was a cliché roadblock, and now Lin Shenhe actually came to tell him to use heat-treated wrought wire to make it

According to the standards of the old time and space, the CWEC produced wrought iron wire of different numbers, and the more advanced ones were also zinc-plated -- wrought iron wire was widely used in the industrial and agricultural production of the Senate, and the telegraph of Lingao Telecommunications was also laid with wrought iron wire

Lin Shenhe took out the fuze structure model -- this is the same scale profile model that he commissioned the people of the machinery factory to make, and elaborated on the specific working conditions and principles

They chose No. 20 galvanized wrought iron wire, which was rolled into springs with a special coiling machine, and then heat treated

Subsequently, Lin Shenhe used test equipment to compare wrought wire springs and phosphor bronze springs, and he himself knew that it was impossible for these two springs to be exactly the same in terms of performance, and the result was certainly not unexpected by him

"It seems that there is no substitute," Zhan Wuya said

"Load it on the artillery and shoot it," Lin Shenhe did not give up

Fuse shells with wrought wire springs were successfully fired with a strong charge on mortars, and were no worse than phosphor bronze springs in terms of safety and firing rate, but they were not effective in firing on 70mm cannons, and spring failures occurred many times - high-pressure rifled guns such as cannons tested the fuse much more severely

Lin Shenhe was satisfied with all the shiyan results and decided to carry out a full-fledged charge live-fire shiyan

The black powder powder column that was sent to dry has all been dried naturally, and a process is to coat the surface of the medicine column with a concentration of *%~*% alcohol shellac paint, which can not only prevent moisture, but also prevent cracking and deformation

Shellac is imported from India and Vietnam, and is a secretion of lac insects that is widely used in the industrial field, and the importance of shellac as a natural resin is significant for an industrial system like Lingao, which lacks chemical products

Weapons enthusiasts in the mechanical department began to reload shells, and the column of high-compression black powder could no longer be simply exploded with a fuse index, so it was necessary to use an ignition device, a detonator

Making a detonator is a very dangerous thing, but there is no difficulty in the process, the kraft paper is rolled into a tube, and then the detonator is loaded into the tube with a press, and then sealed in the past, in order to reduce the danger, the military industry rarely manufactures detonators, and explosive weapons based on black powder generally do not need detonators, and only when the dynamet explosives and ammonium nitrate explosives are used in small quantities

There are a small number of detonator shells and safety caps in the warehouse of the First Research Center of the Special Chemical Complex, and the detonator shells are rolled with kraft paper, and the inside and outside are coated with *% concentration of alcohol shellac paint to prevent moisture, and Lin Shenhe personally selected 20 detonators for experimental shells

Commonly used detonators are divided into single type and compound type only containing mercury mine, the upper part of the compound type is loaded with mercury, and the lower part is loaded with explosives - generally TNT or black sokin

Because the chemical department could not make TNT, all the detonators produced by the military industry department in the past were single detonators -- this time, in order to ensure that the outbreak was effective, Bai Yu suggested making compound detonators, but Lin Shenhe objected -- no matter how big their ability was, they could not make TNT

"You can use the ammonium nitrate explosives from the stockpile, and besides, don't we have the explosives that Landau brought?"

"It doesn't make sense - we haven't been able to produce any of them yet, or we should be able to produce them in batches in the industry."

In the detonator workshop, Lin Shenhe carefully loaded the mercury into the shell several times, and then gently compacted it with a press - in order to ensure safety, he was standing behind a thick steel plate to operate, wearing an explosion-proof helmet, the mercury was extremely sensitive, and it was easy to cause an explosion during the suppression process

When the amalgam powder was pressed, he picked up a helmet made of galvanized iron sheet with a thin piece of silk attached to the tube shell and turned the handle of the press

According to Jishu's requirements, the press pressed the safety helmet into the tube shell according to the force of *~* kg per square centimeter, Lin Shenhe checked whether the combination was complete, and then brushed off the powder scattered on the tube shell with a brush little by little, carefully collected the scattered thunder mercury into the waste tank, and dotted alcohol shellac paint at the bottom of the tube shell, and a detonator was made

Then, a detonator test was done at the Shiyan field, and the detonator used in the shell was equipped with a fuse, and the shiyan was fired according to the actual combat requirements to ensure that the firing pin of the fuse could effectively fire the detonator

The first firing was unsuccessful - the position of the firing needle was inaccurate, Jiang Ye adjusted it on the spot, and the second time it was immediately successful, and he shiyan several times in a row, and each time the detonator was accurately fired

Lin Shenhe nodded: "Now you can assemble" He signed the assembly task list, and officially ordered the assembly of the grenade with the assembled fuse

When the fuse finally made its official debut, the 70mm rifled gun borrowed last time was still on the shooting range, and Lin Shenhe borrowed a 24-pounder smoothbore howitzer - there was no mortar, and the mortar gun was not very useful, so it was temporarily replaced

"Can a cone-shaped shell also be fired from a smoothbore gun?" Zhan Wuya asked

"Of course," Lin Shenhe said, "mortars don't need to fire spherical shells."

The range has been laid with improvised tracks, and 40 rounds of grenades for two types of artillery produced have been transported by railcars: phosphor bronze springs and 20 wrought wire springs in half

"24-pounder howitzer A shell one round" Lin Shenhe held a large iron horn in the bunker and commanded a gun crew of the army training team responsible for artillery firing to quickly open the rattan shell box, take out the shells, and load the fuse

The gunner stuffed the ignition at the tail with a primer and hung a drawstring - for safety, the drawstring was long and extended into the bunker 20 meters away

With a whistle, all the gunners ran to cover and jumped into the aftermath, and the warning whistle for live firing echoed in the air

"Launch" Lin Shenhe roared, and then quickly retracted himself into the bunker and put his eyes on the binoculars made in the optical workshop

The gunner pulled the arquebus violently, and the 24-pounder howitzer let out a roar, and the heavy cannon body fell backwards, spewing out white smoke, and from the periscope, I saw that the shell was shooting out of the trajectory drawn in the air - the muzzle of the cannon was still lower at the beginning under the combination of smoothbore gun and maroon medicine

The shell landed exactly in the predetermined landing area, and with a flash of fire, it exploded

The power of the explosion was much more powerful than the primitive spherical black powder grenade - the kind of shell that exploded after it landed only a puff of black smoke and raised less dirt

"Let's take a look" Lin Shenhe hurriedly climbed out of the bunker, climbed into the agricultural vehicle with Jiang Ye, Wang Ruixiang and a few apprentices from the military industry department, and stumbled along the dirt road to the drop point area

The 24-pounder grenade left a half-man-deep crater in the landing area, and there was still curling smoke, and the air was filled with the pungent smell of black powder

"You see, the charge is more powerful, and the shells are more broken than before," he said, pointing to the shrapnel he had picked up

Not only did the fragments fly farther than in the past, but the degree of fragmentation was also greater than that of spherical bullets, and after the explosion, more than 20 large fragments, and some even burst into only seven or eight pieces, forming dense fragments, and even large-caliber mortar shells with the largest charge could not explode more fragments

Now, a simple search has found more than 70 shrapnel of various sizes within five meters of the crater, and Lin Shenhe pointed out that if the material of the shell can be further improved and the measures of prefabricated fragments can be adopted, the fragmentation effect of the shells after explosion will be much better

Twenty firing of phosphor bronze spring-mounted A fuse shells on both types of guns were all successful, Shiyan, who fired B fuse shells, was all successful on the 24-pounder smoothbore gun, and at the third firing of the 70mm rifled cannon, everyone in the shelter department felt a flash of fire, a loud muffled sound came from the ground, and the ground shook slightly-the shell exploded in the chamber (to be continued)

Baidu search