The ceramic bars were subjected to single-side grinding experiments on Alumina Ceramics using diamond abrasives of different particle sizes. The ceramic rod is about 1450 ° C ~ 1600 ° C, the product shrinks sharply, especially between 1450 ° C ~ 1550 ° C, this stage needs to slowly heat up, so that the product has enough time to shrink. The fourth stage: the heat preservation stage, compared with the small size product, the ceramic rod large size product needs a longer holding time, so that the product is fully sintered. The fifth stage: in the cooling stage, due to the creep of alumina in the high temperature stage, the rapid cooling before the creep point will cause stress relaxation of the product. Alumina Ceramic Bar,Alumina Ceramic Guide Rods,Alumina Ceramic Square Bar,Zirconia Ceramic Shaft Dongguan Haikun New Material Co., Ltd. , https://www.nitrideceramic.com
Copper is divided into cast copper and forged copper. Casting melts the metal and then flows into a specially shaped cavity. After solidification, it forms a specific shape. Forging is to heat the metal, but it is solid, and then it is placed on the platform or in a specific shape of the mold. Tools like this are forged into specific shapes. The manufacturing process of cast copper is simple, and it can be produced in one piece or in batch. The price is relatively low. However, because of the principle of production, tiny pores are inevitable, and the compactness is far less than that of forged copper. Forging can refine metal grains, which are higher in strength than castings. However, molds are expensive to produce and the price is several times higher than that of cast copper. Moreover, in order to enhance the corrosion resistance of copper alloys, it is necessary to add a plating layer, and the degree of adhesion between the plating layer and the copper alloy is an important measure of good or bad.
The purity of aluminum alloy is a very important indicator. In order to save the cost, some shower room manufacturers use mostly used aluminum scraps. The surface is characterized by sandy eyes, pinholes, and lines. The color is dark and the texture is soft, and it is easily deformed or broken. The shampoo, bath lotion and other skin-cleaning products that have been in contact with the shower room for a long time have more or less acidity and alkalinity. As time passes, the profiles are difficult to clean and easy to rust, which can easily cause the shower room to blew. Good shower room manufacturers, such as the selection of Furui shower rooms, are strictly controlled, and all use raw aluminum. The original aluminum texture is relatively uniform, and the surface is treated with multiple layers. It can oxidize and color a variety of colors. The coating is firm and the colors are bright. preservative.
Most stainless steel in the shower room refers to 304 stainless steel. 304 stainless steel is a grade of stainless steel produced according to the American ASTM standard. Its corrosion resistance is very good. In order to maintain corrosion resistance, 304 stainless steel must contain more than 18% of the Chrome, more than 8% nickel. There are many manufacturers to introduce the so-called stainless steel shower room, the actual chromium and nickel content are not up to standard, is the production of 304 stainless steel waste mixed with Other Materials synthesized, not only corrosion resistance is not high, and safety is not guaranteed. In view of the production cost of 304 stainless steel, most of the lower-priced stainless steel shower rooms fall into this category and are highly recommended. As we all know, the hardness of stainless steel is very high, according to this characteristic, the shower room made of stainless steel is not easy to deform, long-term stability.
Comprehensive comparison (only compare high quality products of three materials), hardness: forged copper> stainless steel> titanium magnesium alloy; corrosion resistance: stainless steel> forged copper> titanium magnesium alloy; ease of forming ): Titanium-magnesium alloy> Forged copper> Stainless steel.
Therefore, in order to purchase a shower room, first of all, on the premise that the structure is reasonable, safe, and the materials are qualified, the material shape can be selected according to personal preferences to find a shower room that suits itself. Now the basic hardware of the shower room is divided into three types: copper alloy, aluminum alloy and stainless steel.