Why is the toilet made of ceramics? Have you ever thought about selling the toilet in the market every day, or going in and out of the bathroom at home? Today, we will tell you why the toilets should use ceramics, so why do so many toilets have to use ceramics? Why on earth? I also want to know. Come and see!
Let's talk about the history of toilets first. The earliest toilets can be traced back to Xijing Miscellanies. It is said that the court of the Han Dynasty made a "tiger" out of jade, which was held by the emperor's attendants for the convenience of the emperor. This kind of "tiger" is a special appliance called toilet and urinal by later generations, and it is also the predecessor of toilet.
Δ The tiger in Han Dynasty was a Trojan horse in Return to the Field II by Ouyang Xiu in Northern Song Dynasty, and was interpreted as a "wooden toilet" in Ci Yuan. The toilet used by the ancient people in China was a round wooden barrel with a lid, which was coated with tung oil or fine waterproof vermicelli.
△ Ancient wooden toilet 1596, the first practical toilet was invented by John Harington, a British aristocrat-a wooden seat with a water tank and a flushing valve.
△ Overseas wooden toilet 1885, thomas tew Weifu won the first patent of all-ceramic toilet in Britain, and dozens of improvement patents were awarded every year. 19 14, Qixin Ceramics Factory (the predecessor of Tangshan Ceramics Factory) opened by the British made the first ceramic toilet in China.
The question now is, with the development of science and technology, why don't we choose other new materials and still use ceramics to make toilets? This should also start with the toilet itself.
A qualified toilet gentleman needs the ability to complete the following three tasks:
First, it must be a washing machine;
Second, it must be waterproof, clean and hygienic;
Finally, it must be stronger.
Because people are sitting on the toilet, and some people are heavy. Porcelain meets the above three needs.
For most users, the toilet must be an effective waste cleaner. But for most of us, the toilet will drag your poop and other substances into the water and then be washed to God knows where. This is actually a very complicated design.
Water tanks, valves, overflow pipes, sewage pipes-these are all very delicate. It contains many complex engineering applications. Ceramic toilets like glass are made of clay and water. The process of toilet production includes blank making, blank forming and porcelain sintering. These processes are relatively simple and the cost is very low.
On the other hand, plastics are made into articles by extrusion or injection molding. For a toilet with complex structure, the cost of making it with plastic is too high. This is why plastic is usually the only place in the toilet: using it as the leading material will lead to high cost.
Another factor is durability. We all need to go to the toilet-it's best not to leak or spray anything when going to the toilet. Super durable porcelain is very strong and hard. This kind of plastic cannot be guaranteed.
If you are a thin person with a normal figure, you may not feel this way deeply. However, for an overweight person, if he/she makes a hard landing every time he/she sits on the toilet, and the toilet is a durable product, it is conceivable that the plastic material will gradually bend under the strong impact once or twice a day over time.
Okay, so it's not practical to make a toilet out of plastic. What about stainless steel? Stainless steel is not only strong, but also the manufacturing process is not too complicated. Shit, don't forget the toilet in prison (and the toilet on our railway and the toilet on the plane) ... The problem is the user experience. Although stainless steel is also very strong, it is very sensitive to temperature changes.
In other words, it may freeze your ass on the toilet. It looks strange to put a plastic seat on a stainless steel toilet. In short, as long as I think of the toilet in prison and the toilet on the train, I think the toilet should never be stainless steel.
Porcelain is also very waterproof. This may sound simple, but porous materials can not only contain water, but also provide conditions for bacterial reproduction. Therefore, it is very important that the toilet for cleaning garbage is not affected by bacteria and water.
Then the secret of waterproof porcelain is glaze. Just like the manufacturing process mentioned above, the glaze allows bacteria and water to stay on the outer layer of the glaze, and it is also easy to clean.
Over the years, porcelain has been the first choice for bathroom and bathroom materials, which is really impressive. Everyone in the world may use the toilet in different ways, but the same thing must be comfortable and clean.