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  There are many types of glass, among which optical glass is one of them. The optical properties of quartz glass sheets have their own unique characteristics. IR. Because quartz glass has high temperature resistance, extremely small thermal expansion coefficient, good chemical stability, bubbles, stripes, uniformity, and birefringence comparable to general optical glass, it is a high-stability optical coefficient working in various harsh occasions. Essential optical material. It is widely used in lenses, prisms, etc. of optical instruments. Quartz glass sheet is a special industrial technical glass made of silica, which is a very good basic material.  Quartz glass plate   has a series of excellent physical and chemical properties, such as: 1. High temperature resistance. The softening point temperature of quartz glass is about 1730 ° C, it can be used for a long time at 1100 ° C, and the maximum use temperature in a short time can reach 1450 ° C. 2. Corrosion resistance....

    What is meant by space truss? Space trusses are three-dimensional structures with longitudinal members connected at their ends by hinges assumed to be frictionless. The loads on space trusses are applied only at the nodes or joints, thus the self-weight is allocated for each element at its two ends joining other elements of the truss. What is the difference between plane truss and space truss? A planar truss is one where all members and nodes lie within a two-dimensional plane, while a space truss has members and nodes that extend into three dimensions. The top beams in a truss are called top chords and are typically in compression, the bottom beams are called bottom chords, and are typically in tension. What are space trusses used for? Space truss is commonly used in three-dimensional structural element. The forces are subjected axially in space truss elements, which are assumed pin connected where all the loads act only at joints . What is space truss structure system? A...

  One-third of a person's life is spent in bed, among the many pieces of furniture, there is no furniture as long as the bed and the relationship between people, are so close. In today's emphasis on people-oriented everywhere, the "bed", a carrier of a happy life, its comfort or not is pivotal. For people with mobility problems, the role of the bed is even more unusual for people with functional disabilities who need to be in bed. They need a bed with special functions, we call it a "nursing bed". So,   nursing beds , are you using the right one? Sickbeds & Nursing Beds   In the early days, the function of nursing beds was relatively single, but as the standard of living improved, the aging population proliferated, people's needs for different ways of care, and the pursuit of quality of care,  nursing bed manufacturers  found business opportunities, and multifunctional nursing beds were born to meet the different needs of individuals.   MAIN FUNCTION...

  There are many kinds of furniture panels, and people who look at it are dazzled. So, which of the common panels is MDF or solid wood particle board? Let's get to know it now. 1. The advantages and disadvantages of medium density fiberboard Medium-density fiberboard   is commonly known as density board. It is a man-made board made of wood fiber or other plant fibers and applied with adhesive. According to its density, it can be divided into high-density fiberboard, medium-density fiberboard and low-density fiberboard. Among them, the nominal density of medium-density fiberboard is in the range of 650KG/square meter-800KG/square meter, and the environmental protection level can reach E1. advantage: 1. The internal organizational structure is uniform, the performance is stable, and the physical index does not change much under different environments, so it is not easy to deform. 2. The surface is smooth and delicate, which is convenient for finishing and saving paint, and the b...

   The effective solution to the yellowing of elastomers is to add  antioxidants   and ultraviolet absorbers, which can effectively prevent and delay the yellowing. However, there are many kinds of antioxidants, and the selection of suitable products requires certain technical support and experience accumulation. The main culprit of oxidative yellowing of elastomers is ultraviolet rays, which are mainly from sunlight. Therefore, especially in the face of customers whose products need to be used outdoors, we will recommend adding a certain amount of ultraviolet absorbers to the products. , Can effectively absorb ultraviolet rays and delay yellowing. Moreover, the use of ultraviolet rays and antioxidants together can play a synergistic effect, and the effect of 1 plus 1 is greater than 2. 2. What are the different classifications and mechanisms of antioxidants? The classification of antioxidants, one is the main antioxidant: capture peroxidative free radicals, mainly h...

  Sauce packaging machine  is mainly used for fruit juice, honey, jam, ketchup, shampoo and the other products. The feeder usually uses a rotary valve metering pump to work with the auto film drawing of pillow packaging, bag making, sealing, cutting, coding and easy tearing. Then the automatic packaging is realized through the automatic film drawing, bag making, sealing, cutting, coding and easy tearing of the packaging machine.   The automatic filling and packaging machine from JINGWEI has got high reputation for efficient operation, longer life span and easy maintenance, moreover we also provide best custom service with Automatic Granule Filling and Packing Machine, Automatic Powder Filing and Packing Machine, Automatic Liquid Filling and Packing Machine. Welcome to select your interested produts and contact us if you have any questions!     ADVANTAGE &FEATURES 1. Motion Servo control ,stable running,simple maintenan...

Shipu offers quality automatic can sealing machines to help you increase your productivity. Choose from our can seamer equipment: 1. Fully automatic nitrogen filling vacuum sealing machine 2. Vacuum sealing machine Automatic Can Seaming Machines Can seamer, a machine that seals the lids of jars. Fully automatic can seaming machines are generally used in automated production lines and mass production lines. Due to the high cost, high output and high technology, it is deeply favored by large enterprises. The working principle of automatic vacuum nitrogen filling and sealing machine 1. The cans filled by the filling machine flow into the turntable of the can sealing machine. 2. The capping machine starts to cap automatically. 3. Turn the turntable to the first knife pre-sealing. 4. Enter the vacuum chamber and vacuumize. 5. Controlled by the vacuum suction switching valve, nitrogen gas enters the vacuum chamber, and the nitrogen gas...