Healthy soy sauce is a condiment that can be used almost every day. It can be colored and can increase the flavor and freshness. It can also add a variety of beneficial nutrients to the human body. The healthy soy sauce also has a shelf life, and it often deteriorates in life. , Then how should we judge whether healthy soy sauce has deteriorated? What will happen to healthy soy sauce after it deteriorates? The following editor will tell you more specifically.
1. Look at the appearance to judge whether the healthy soy sauce has deteriorated
When you judge whether the healthy soy sauce has deteriorated, you can look at the appearance of the healthy soy sauce. If white floating objects appear on the upper layer of the oil in the bottle, it means that the healthy soy sauce has gone bad and has produced a lot of bacteria. It is suitable for people to eat, otherwise these bacteria will enter the human body and harm human health.
2. Taste the taste to determine whether the healthy soy sauce has deteriorated
When judging whether the healthy soy sauce has deteriorated, you can take a small sip and savor its taste. The long healthy soy sauce without deterioration will have an attractive sauce smell and the taste is slightly sweet and salty, while the healthy soy sauce After it deteriorates, its taste will also change. If the taste of healthy soy sauce is a little sour when tasting healthy soy sauce, it proves that healthy soy sauce has deteriorated and can no longer be eaten.
3. Look at the texture to judge whether the healthy soy sauce has deteriorated
The healthy soy sauce with good quality and no deterioration is a black-red liquid substance close to black. Its texture will not stick to the wall of the bowl when it is poured into the bowl and shaken gently, and it can see obvious red. If the healthy soy sauce deteriorates, everyone will find that its texture is turbid, and there are obvious residues on the bowl wall when it is poured into a bowl and viewed.
The shape of clear tempered glass is different, but the common ones are flat and curved. The safety of clear tempered glass is higher than other glass, but the clear tempered glass we use will have poor flatness. Clear tempered glass The manufacturer analyzes the reasons.
Reason 1: When the clear tempered glass is heated, the temperature difference between the upper and lower surfaces of the clear tempered glass will cause deformation, and it will bend upwards or downwards. Different treatments are required for different situations.
Reason 2: Random uneven temperature distribution can also cause deformation of clear tempered glass. Clear tempered glass manufacturers tell everyone that this is mainly caused by poor equipment conditions.
Reason 3: When the clear tempered glass is heated, the temperature difference between the middle and the edges will also cause the deformation of the clear tempered glass. The reason is that the temperature of the middle part is higher than the temperature of the edges, which will cause unevenness when cooling.
The above three points are the reasons for the poor flatness of clear tempered glass. I believe everyone has a simple understanding. There are many types of clear tempered glass produced by clear tempered glass manufacturers. You can choose the appropriate clear tempered glass according to your needs. Welcome to discuss cooperation .
PVC pipes are generally divided into hard pipes and hoses, such as drain pipes, threading pipes, UPVC pipes, etc. These are hard pipes; and hoses are often used on the surface of floors, ceilings, and leather. Because PVC hose contains plasticizer, its physical properties are relatively poor and its application range is limited. The PVC hard pipe does not contain plasticizers, so it is easy to form and has better physical properties, so it is one of the plastics with relatively large output at present. After the pipe has been used for a period of time, yellowing will appear, and for this problem, the root cause must be found.
First of all, it is necessary to determine whether it is caused by the processing temperature being too high. If the temperature is too high, the paste will turn yellow. If the temperature is too high, you need to appropriately lower the temperature of the barrel material, which can improve the yellowing phenomenon. Secondly, it is necessary to determine whether the yellowing is caused by the decomposition of PVC. If it is, the formula and process should be improved. And check if the heat stabilizer has been added enough. Check whether the amount of added fluorescent whitening agent is not enough, or whether the selected fluorescent whitening agent is not suitable. These can be tested by themselves
PVC pipes are made of PVC plastic. PVC plastic has excellent resistance to oxidants, reducing agents and strong acids, but PVC plastics are easily corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and are not suitable for aromatic hydrocarbons, Where chlorinated hydrocarbons come into contact. The melting temperature is a very critical parameter in the production and processing of PVC. If this parameter is used improperly, it will cause the problem of material decomposition. It is recommended to use the fluorescent whitening agent LP-127 for PVC pipes. Its appearance is light yellow crystalline powder, which has very good anti-ultraviolet effect, especially for pipes and sheets. The dosage is small, and the key is higher whiteness. Yellow again.
bathroom sink for vanity materials generally need to choose materials that are not afraid of water, hard texture, and good decorative effects to make countertops. The materials that can achieve this stage mentioned above include marble, granite, artificial stone, etc. Wait for these materials. Because the texture of different materials is also different, the relevant decorative effects and prices vary greatly, so consumers should choose according to their own preferences and needs.
Here are some materials suitable for absorption basin countertops:
1. Granite countertops. Generally speaking, granite countertops have other color classifications, such as five lotus, malachite green, snow white and blue star. The texture of granite is generally hard, so the price will be cheaper. , Relatively speaking, the decorative effect is relatively poor compared to other materials.
2. Marble countertops are generally classified as beige stone, brown mesh, large green, large white and Norwegian red, etc., but marble is more brittle and difficult to process, so the price is relatively high, but its The pattern decoration is very gorgeous, very suitable for decoration.
3. Artificial stone (natural synthetic resin) countertop: This is a new type of composite material, which can generally be imitated into natural stone with various textures and patterns. In addition, because the on-site processing is very strict, it is very hard, and there is no radiation, and it is harmless to the human body, so using artificial stone to make the Vanity top bathroom sink is the direction of future development.
Types of badges: paint badges
Paint characteristics: bright colors, clear lines, strong texture of metal materials, copper or iron can be used as raw materials, of which iron paint badges are inexpensive and good quality. If you have a small budget, choose this one is the most suitable! The surface of the paint badge is OK Apply a layer of transparent protective resin (Poly). This process is commonly known as "glue" (note that because of light refraction, the surface of the badge will be bright after the resin is applied), but the paint badge after adding the resin will lose A sense of unevenness.
Two types of badges: imitation enamel badges
The surface of the imitation enamel badge is flat. (Compared to the paint badge, the metal lines on the surface of the imitation enamel badge are actually slightly raised with your fingers.) The lines on the surface of the badge can be gold-plated, silver-plated and other metal colors. Various imitation enamel pigments are filled between the metal lines. The production process of imitation enamel badges is similar to that of enamel badges (cloisonne badges). The difference from real enamel is that the enamel pigments used in the badges are different (one is real enamel pigment, the other is synthetic enamel pigment, imitation enamel pigment.) Imitation enamel badge, The craftsmanship is exquisite, the enamel color surface is smooth, especially delicate, giving a very high-end and luxurious feeling, and it is the first choice for badge making. If you make a beautiful and high-end badge first, please choose imitation enamel badge or even enamel badge.
Three types of badges: stamping badges
Stamping badges generally use badge materials such as copper (red copper, red copper, etc.), zinc alloy, aluminum, iron, etc., also known as metal badges. Among them, copper is the softest and most suitable for making badges, so the lines of copper stamped badges are the clearest , Zinc alloy badges are second, of course, because of the price of materials, the corresponding copper badges are the highest. Various electroplating effects can be done on the surface of stamping badges, including gold plating, nickel plating, copper plating, bronze plating, and ancient silver plating. At the same time, the concave part of the stamping badge can also be processed into a matte effect, etc. , So as to produce a variety of exquisite stamping badges.
Four types of badges: printed badges
Printed badges are divided into screen printing and lithographic printing, and are generally called epoxy badges. Because the final process of the badge is to add a layer of transparent protective resin (Poly) to the surface of the badge, the materials used for printing the badge are mainly stainless steel and bronze. The copper or stainless steel surface of the printed badge is not electroplated, generally Use natural color or brushed processing. The main difference between silk-screen printing badges and lithographic printing badges is: silk-screen printing badges are mainly for simple graphics and fewer colors; while lithographic printing is mainly for complex patterns and more colors, especially with gradient colors. Correspondingly, lithographic printing badges More exquisite.
Five types of badges: bite version badges
Bitten badges are generally made of various materials such as bronze, stainless steel, iron, etc., with delicate lines. Because the upper surface is added with a layer of transparent resin (Poly), it feels slightly raised to the touch and has the characteristics of bright colors. Compared with other processes, the production of bite-plate badges is simple. After the designed artwork film is exposed, the badge artwork on the negative film is transferred to the copper plate, and then the pattern that needs to be hollowed out is corroded by chemical agents. After coloring, grinding, polishing, punching, soldering, electroplating, etc., a bite-shaped badge is completed. The thickness of the bite version badge is generally 0.8mm.
Six types of badges: tinplate badges
The material for the production of the tinplate badge is tinplate. Its craft is relatively simple, the surface is wrapped with paper, and the printing pattern is provided by the customer. The badge is cheap and relatively simple to make. It is more suitable for student teams or general team badges, as well as general corporate promotional materials and promotions Pin etc.