The following is a simplified method after I saw the tin water hanging tester and understood its principle! I have been using it, and the effect is good!
The price of tin water hanging tester ranges from 4 thousand to 10 thousand yuan, which is too expensive for most people to afford. So the following introduction is very suitable for all bosses to use, the tools are cheap and the operation is simple! )
The degree of tin measurement is actually the density of tin measurement. After knowing the density, check the comparison table of the specific gravity content of tin-lead alloy and the degree will come out!
The degree of tin is the purity of tin, that is, the content of tin.
Since the density is to be measured, and the density is irregular in shape, it is necessary to use the physics knowledge learned before: Archimedes principle! Go to Baidu if you don't know!
All right, now get to the point!
Below are several tools we need: small electronic scale, needle and thread, disposable cups.
That's right. Just three things, very common and easy to buy.
Small electronic 200g/0.0 1g, sold in Taobao around 30 yuan, the freight is less than 50. Three-digit ones are more expensive, two or three hundred! As for which one you want, suit yourself! The more digits, the more accurate. There's nothing left, so hit the wall!
All right. Here comes the point! Now talk about the operation:
Melt the tin first and pour out a small piece, preferably in the shape of melon seeds, not too long, so as to facilitate the later operation! After the tin block is finished, cut a small hole on both sides of the tip of the tin block with scissors to facilitate the later operation. Weigh the can with a small scale first. Let's mark it as a! Then fill disposable cups with 80% water, put it on a small scale, and peel it! Then tie the tin block with iron wire. Tie it to the scissors so that it won't fall off! After binding, pull up the tin block with iron wire and put it into a disposable cup. Tin blocks should be completely submerged by water, not exposed or touched by cups. When the nickname is stable, write down the weight as B, and the rest will be simple! Divide a by b, and the density comes out! Then use a pair of tin-lead alloy specific gravity content comparison table, and the degree will come out! Simple!
The density of tin is 7.29, and that of lead is 1 1.3. It can be understood that the higher the specific gravity, the lower the tin degree! ! ! (Specific gravity is also called density)
The above method requires a comparison table of specific gravity content of tin-lead alloy to successfully measure tin degree. There are 8 sheets in this form (8 sheets in A4 paper size), and the degree is accurate to 0. 1-99.9. Friends who need this table can contact me on QQ: 22688 135 13.
All kinds of tin bars, tin blocks, tin wires, tin slag and waste tin can be measured!
Very suitable for scrap tin recyclers and electronics factories!