Speak of the design of tank and technology, the attention dot of a lot of people is the accuracy and so on that artillery might, fire accuses, or it is armor material qualitative ply, again or it is engine power. But actually, tank makes the test that also is pair of base industry, such as armor plate solders the production of technology and steel of high grade armor.
During World War II, the production of tank armor plate and solder the technology has risen to a new standard. To big fight later period, each country can the level that the tank that rolling comes out had reached 100-150 millimeter with large board thickness, this is very tall to the requirement of fundamental iron and steel industry. Because pursuit fights flexibility, tank must join special tantalum with large board, obtain in extend a kind of balance between gender and hardness. And solder in armor plate on, each country also is get rid of the stale and bring forth the fresh, extensive machinery solders means gets very quickly popular.
Nevertheless, while tank develops with steel technology, a lot of countries are in of new technology apply go up to still exist problem. Of the tremendous, pull current Cheng that Muscovite seeks weapon yield all along simplify, the issue that gives in this respect is more. 46 tons of when if comes out in research and development of later period of World War II completely heavy JS3 type tank (express according to correspondence of E Ying abecedarian so undertake turning writing, it is IS3. JS3, the view of IS3 is hold water) mix in rolled steel solder go up a too serious problem. JS3 is better for pursuit defend force, bodywork is used solder completely structure. Among them part of its car head is to use a kind of structure more complex " plow " model, present many area structure, this is right solder the technology raised very tall requirement. And the thickness of car head plate that its use achieved 110 millimeter, also approached the limit of Russian craft.
To Summer 1945, inside a few months, JS3 tank had produced 400. But reception army discovery, these just step down the new car of product line, just use actually begin phenomenon of craze of occurrence large-scale armor plate before long. The armor of craze is centered around solder line, have the case that whole solder line splits even. Break still happens in the central area of a few armor plate even: No matter be welder,this shows its art, still be armor plate workmanship does not have pass a barrier. Went up in the multilateral parade of Berlin 1945, JS3 ever was awe-inspiring very, but unbeknown is, these JS3 were to pass urgent after repairing, it is normal that at least appearance looks just appear on parade-ground.
Defend heavy-duty tank nearly a JS3 of the 60th group was to achieve a record more: Whole vehicle number gave break of many 100 size, engine support is flat and complete broken. A lot of soldiers do not think, perhaps say to dare not drive the tank of such quality. Additional, in-house and narrow JS3 man-machine effect also is quite disappointing.
JS3 by urgent stop production, 400 when had left factory return a factory to undertake repairing entirely, many 50 among them had lost maintenance value too much because of break, declare discards as useless. What the loss of whole episode achieved 5 million ruble at that time is gigantic, this is equivalent to the 12 million dollar at that time probably. If according to purchasing power convert, this money is equivalent to probably close today 200 million dollar (exceed 1.2 billion RMB namely) . After undertaking be improvemented afresh to craft, JS3 just resumes production. And the consequence that incident causes also very " Russia changes " : Person of more than 60 responsibility is caught put in prison. Actually this also does not blame them on certain level, have not catch up with to craft however be caused by.
Actually, muscovite pledges in armor plate material and solder go up to be put in many problems all the time. If be during the war, the armor plate quality of its T34 tank should be differred than German tank -- even if be the armor steel of same ply, fighting play ability to go up to want how terrible than adversary. Because pursuit is tall those who produce quantity and production is convenient quality, its solder working procedure is simpler also, such working procedure solders with the armor plate in 100 much millimeter go up to be able to give an issue naturally -- before of JS2 tank before what armor uses is relatively simple cast armor, and the front used the bodywork of KV tank to add solder add armoured means. The armor plate of an organic whole of such ply, to its tank industry character still is first time.
