买的紫陶壶里有金属粉末是什么?

一位陶友提出的问题,自己买的紫陶壶里有一些金属粉末,但不知道是什么。

A friend asked me that there were some metal powders in the purple pottery pot he bought, but he didn’t know what it was.

首先说明一下,这种“金属粉末”并不是什么可怕的东西,而是金刚砂

First of all, this “metal powder” is not something terrible, but emery.

为什么紫陶壶里会有金刚砂呢?甚至一些紫陶罐里也会发现。这些金刚砂有两个来源:一是借助金刚砂磨壶口、罐口,金刚砂掉落在内部;二是打磨的第一步需要喷砂,将火皮喷掉,所使用的材料就是金刚砂,操作时一部分残留在紫陶内部。

Why is there emery in the purple pottery pot? Even in some purple pots. There are two sources of the emery: one is to grind the mouth of the pot and the mouth of the pot with emery, and the emery falls into the interior; the second is that the first step of grinding requires sand blasting to spray off the fire skin. The material used is emery, and part of it remains in the interior of purple pottery during operation.

为什么金刚砂能够帮助磨口,并且用于喷砂呢?这是因为金刚砂硬度高,其硬度高于烧成后的紫陶坯以及表面的火皮,因此可以将壶口多余的部分磨掉,达到完美的密封效果;也可以将火皮喷掉,提高打磨效率。

Why can emery help grind the mouth and use it for sand blasting? This is because the hardness of diamond is higher than that of the burnt purple pottery and the surface of the fire skin. Therefore, the excess part of the pot mouth can be ground off to achieve perfect sealing effect, and the fire skin can be sprayed off to improve the grinding efficiency.

还有,紫陶打磨后都会用清水冲洗,怎么还会有金刚砂呢?这主要是因为金刚砂的另一个特点:密度大。

What’s more, purple pottery will be washed with water after polishing, how can there be emery? This is mainly due to another characteristic of emery: high density.

相同的体积,密度越大,物体越重。金刚砂的密度远远超过水的密度,受引力的作用更明显。因此,即使用清水去冲洗,有一部分金刚砂还是会残留在底部。

The same volume, the greater the density, the heavier the object. The density of emery is much higher than that of water, and the effect of gravity is more obvious. Therefore, even if you use water to wash, some of the emery will remain at the bottom.

但这也并不是什么难题,只需要仔仔细细清洗,残留的金刚砂也就清除了。

But this is not a problem, only need to clean the baby carefully, the residual emery is also removed.

未经允许不得转载:饮茶乎 » 买的紫陶壶里有金属粉末是什么?

赞 (0)