2021.5.27
铸件零件更有可能具有缺陷的原因
互联网充满了讨论部分的讨论。施工或伪造，如果您谈论枪支部件或汽车零件，那么无论您谈论枪支零件，似乎压倒性的共识都是伪造的零件更好。简单地说，铸件部分较弱，因为它们在其中都有所有这些空隙，它们没有谷物结构。没有组织，看起来只是偶然。如果你用显微镜看它。你会看到它是非常多孔的，它看起来像海绵。为什么会发生这种情况？嗯，在铸造过程中，让我们考虑我们拥有完美的模具。一侧没有冷却比另一边更快，倾倒的钢的粘度是完美的，我们正在以其最高质量讨论铸造过程。那里仍然会在那里无效。 as the steel is cooling from the outside to the inside. things called dendrites are going to form and they look kind of like snowflakes. as they cool down, they will form grains, but the grains are not in any order, there’s some are small, and some are big, or even coarse, fine, etc. they’re creating these voids, and even if we have everything perfect, there are still will be voided. and that’s why casting doesn’t create a very strong product.
#billet.
对其他东西施加好吗？是的，但对于高压力的枪支部件，这不是最好的决定。这就是一场街道发挥作用的地方。我们知道我们必须拥有良好的谷物结构。你如何让液体钢进入钢坯？it’s pretty easy, instead of pouring it, all they’re doing is they’re cool off that liquid steel, slide it down this chute, so that it’s kind of in the shape of a rectangular tube and as it’s going down, it’ll hit these rollers called a hot roll and the hot roll is squeeze that steel straight through it. it’ll line up all these grains and smash off a lot of the voids.
＃锻造
如果你想进一步迈出一步，你可以冷轧它，这会增加坯料的价格，所有这些都会增加谷物结构的力量，摆脱更多的空隙。但如果你想在第一个进程停止，你会有一个街道，然后从那里那里你必须决定你是否想进来那里和碾磨或削减你想要的形状，或者削减你想要的形状，或者削减你有街单，伪造它陷入你需要的形状，然后碾磨它。所以当您使用此方法时，它会进行额外的加强过程。有什么诀窍，尽可能多地将谷物流在一起，而不是通过切出来进入和中断谷物结构。这是将自己与其他方法分开的主要区别。乘坐一次锻造的方坯然后完成锻造过程，然后他们碾磨它。
综上所述
Well, for cast parts if you’re making light production, something that doesn’t have a lot of stress going on it, use a cast part, because you can get it to be very detailed for a very cheap price, it’s very cost-efficient to use casting for those types parts. the billets that are machined or milled out, you can see spikes tactical that’s a great example for air 15 receivers, they got skulls and the airplane, and all they’re doing is they’re taking the billet and they’re milling out what they need and that can get detailed too. but it’s not the strongest. what you want to do is just forge whatever you’re doing so that you can keep the continuous grain structure.
