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What are the production factors that affect the quality of silicone tubes?
07-03

2020

What are the production factors that affect the quality of silicone tubes?

What are the production factors that affect the quality of silicone tubes? Let me introduce you to the following. 1. viscosity. Scientific and technical terminology: liquid, proposed liquid, or proposed solid material flow resistance volume characteristics, that is, by external forces and flow, intermolecular The internal friction or resistance to flow presented. Usually, viscosity is directly proportional to hardness. 2. hardness. The ability of a material to locally resist hard objects pressed into its surface is called hardness. Silicone rubber has a Shore hardness range of 10 to 80, which gives the designer full freedom to choose the desired hardness, to optimize the hardness of the rubber. Specific functions can be achieved. Various intermediate hardness values can be achieved by blending polymer substrates, fillers, and additives in different proportions. The time and temperature of heat curing can likewise change the hardness without destroying other physical characteristics. 3, tensile strength. Tensile strength refers to the force required to cause a rubber material sample to tear on each unit of the range. The tensile strength of thermosulfurized solid silicone rubber ranges from 4.0-12.5MPa. Fluorosilicone rubbers have a tensile strength range of 8.7-12.1 MPa. The tensile strength range of liquid silicone rubber is between 3.6-11.0MPa. 4. tear strength. The resistance to the force applied to a sample with an incision that impedes the expansion of the incision or score. Hot vulcanized solid silicone rubber will not tear, even when subjected to extremely high torsional stresses after cutting. Tear strengths of thermosulfide solid silicone rubbers range from 9-55 kN/m. Fluorosilicone rubbers have a tear strength range of 17.5-46.4 kN/m. Liquid silicone rubber tear strength range between 11.5-52 kN/m. 5, elongation. Usually refers to the "ultimate rupture elongation" or when the sample fractures relative to the original length of the percentage of growth. Thermosulfur solid silicone rubber elongation of the general range between 90 to 1120%. Fluorosilicone rubbers have a typical elongation range of 159 to 699%. Liquid silicone rubbers typically have elongation ranging from 220 to 900 percent. Different processing methods and choices of hardeners can greatly vary elongation. The elongation and temperature of silicone rubber have a great relationship. 6, operation time. Operating time from the moment the colloid joined the vulcanizing agent began to calculate. The operating time and the latter vulcanization time is not exactly the boundaries, the colloid from the moment the vulcanizing agent has been added! The operation time is 30 minutes without affecting the quality of the finished product. Therefore, the more time is saved during the operation of the product, the more favorable the finished product. 7, vulcanization time. Some places will say that the curing time. That is after such a long time silicone vulcanization reaction is over. The basic end of this is to say that the product has been available, but there is a small part of the curing reaction has not ended. So the use of silicone rubber products, such as silicone molds is usually put into use again for some time.

How to distinguish ordinary silicone tube from imported silicone tube?
07-02

2020

How to distinguish ordinary silicone tube from imported silicone tube?

Recently, we have often received such customer advice, customers want to purchase several silicone tubes, they do not know whether to choose ordinary or imported, as a professional senior silicone tube manufacturers to tell you what is ordinary silicone tube and imported silicone tube (also known as platinum silicone tube), what is the difference between them? A general common silicone tube is mainly used in industry, electronics, instruments, transportation pipes, household appliances, and other special environments to protect the cycle of the carrier. Imported silicone tube is a food grade or medical grade silicone tube mainly used for food utensils (coffee pot, boiling kettle, ironing bucket, rice cooker, etc.). (frying pans, water dispensers, machines, toasters, tools, water heaters), medical equipment (silicone fittings, infusion tubes, catheters), etc. Ordinary silicone tube is generally made of ordinary silicone and traditional curing agent, lower cost, but after some time will slowly turn yellow, long-term use will also weaken the physiological inertia but has the advantages of easy processing, high output, very suitable for the machinery industry. The imported silicone tube is made of high-quality silicone raw materials, platinum curing agent vulcanized and formed, compared with the traditional silicone tube, has safe environmental protection, environmental protection, and environmental protection. High transparency, yellow resistance, stretch resistance, non-toxic and odorless, long service life and physiological inertness, biological anti-aging, etc., more assured use. In the food and medical industry, silicone tubes are of such high quality and safety that we must ensure that they do not pose a risk to human health. Imported silicone tube happens to meet these conditions. But the processing process of imported silicone tube is complicated, the output is relatively low, the production cost is high, and you must use products produced by professional manufacturers. It is the only way to better ensure product quality and performance. When purchasing silicone tubes, you need to first determine their purpose, and then to distinguish their different characteristics. 1. Look at the transparency Generally, ordinary silicone tube transparency is poor, the surface gloss is low, poor reflection, haze feeling. Imported silicone tube high transparency, good stability, feel bright. 2. Smell Compared with imported silicone tube, ordinary silicone tube is irritating, so ordinary silicone tube can not be used in food containers, not good for the human body. Safety and health. 3. Pull the silicone tube Hold the silicone tube in both hands and pull on both ends. If it's whitish, it's a regular silicone tube, and the opposite is an imported silicone tube.

Why use silicone as a pacifier?
07-01

2020

Why use silicone as a pacifier?

When you think of silicone, what comes to mind? Silicone buttons, silicone pacifiers, and several other uses are common in everyday life Silicone has a wide range of uses in the market goods, non-toxic, tasteless, soft and warm properties have changed its public image - most can be made into kitchen utensils or daily necessities, let people think it is close to the "virtuous". Silica gel, also known as silicone rubber, is a highly reactive adsorbent material, insoluble in water and any solvent, non-toxic and tasteless, chemically stable, high adsorption properties, good thermal stability, etc., it is the most suitable for tableware and kitchen utensils. Silicone material looks a little thin it is quite robust, -60 ℃ to 260 ℃ environments it can easily cope with. Since this material doesn't contain any metal elements, it can be used not only to heat through water over a fire but also in the microwave. Not to mention, it's also an environmentally friendly material that can be recycled. It also has a special feature for other textured utensils: it's soft. So it's hard to convince people that it can be used as a variety of utensils. Lékué, a Spanish company, has made the most of this material to create a wide range of kitchenware. In Spain, Lékué is still an unfamiliar brand, but their products are already on the podium of international design awards. on. Go to the DIY pastry utensils shop, it transforms into a cute mold again. Cute cartoon image, bright color scheme, very beautiful, high temperature resistant, can effectively stop the heat to prevent burning your hands, microinjection process, does not fall off, does not fall off, can be effective non-slip, the best gift for customers.

What conditions can affect the quality of silicone products?
06-29

2020

What conditions can affect the quality of silicone products?

Silicone rubber products are widely used around the world as an environmentally friendly, non-toxic, and harmless product. Quality is the life of the factory, so how to control the quality of silicone products? In these beautiful times, the silicone factory is the same, the environment of the workshop is the appearance, clean, and dust-free workshop is to ensure quality! The basic guarantee is that because silicone is very absorbent, little attention is paid to the dust on the product and it becomes defective. Secondly, the production staff should also change their dust-proof clothing. In the production process of quality inspection, the quality inspection personnel should undergo strict training before taking up the job, and only after passing the examination they can complete the task independently Inspection. The quality manager should give the quality control staff a clear quality standard and a written record of what to do after an adverse occurrence Adverse phenomena and propose solutions. Our silica gel products factory, quality for survival, quality for development, quality for benefit.15 years of experience in silica gel products. One-stop service, make customers satisfied, we are strict control silicone product quality. If the silicone rubber factory has no quality First of all, hold regular quality awareness training for employees, so that they can understand what quality is and what high quality is, and instill quality to the enterprise's Importance, develop quality awareness. In addition to training, make appropriate rules and regulations to strengthen the supervision and management of the factory. In fact, training alone is not enough; rules and regulations need to be made to monitor implementation. Employees should adhere to these three principles. 1. do not accept inferior silicone products: products with previously poor workmanship should be rejected (to establish the concept of workmanship between customers) - mutual Inspection. 2. do not manufacture silicon jacket defective products: in every manufacturing process, products must be manufactured to specifications/requirements as required - Self-testing. 3. No outflow of defective silicon jacket products: refers to self-inspection and mutual inspection during the manufacturing process to prevent the outflow of defective products. -Special inspection

silicone sponge tubing processes
06-23

2020

silicone sponge tubing processes

1. Conventional foaming technology: can be unlimited length according to customer requirements custom cutting length, foam density can be the most extensive from 0.3 to 1.0 can be produced without special requirements. The special foaming silicone tube can also be customized according to customer requirements, such as flame retardant, high temperature, etc., but it also has the disadvantage that in the long infinite length of the production process will have some impact on the inner diameter of the product will be deformed inner hole is not round enough to have deviations in size. Such foaming process requires talcum powder and the bottom of the product is often less sticky talcum powder in the baking tunnel plus sulfur will fall off the bottom will lead to a very slight belt marks. 2 over the oil foaming process: this process does not need to go through the talcum powder but from the head of the extrusion directly after filtering a layer of oily material. Because there is no need to have talcum powder, so naturally there will be no belt marks of this situation, foaming silicone tube out of oily material in the filter again. Immediately after entering the baking tunnel sulfur, but such processes for the product density requirements are generally higher to control the density of foam in 0.5 or more It should not be too low, and this type of foaming process can meet FDA food-grade certification requirements. It can also be a variety of secondary processes such as polishing, chamfering, screen printing, laser engraving, etc. The disadvantage is that it can not be produced infinitely long, because the inner tube after the oil sticky oily material, and in the drying tunnel in the higher temperature of oily material will be formed in the formation of water vapor bonded to the inner wall of the foaming silicone tube is not volatile (silicone are closed-cell foam sealed) and the formation of high-temperature fog. So generally in the production of 3 to 5 meters will need to cut a section to let the volatile fog spread, so can not do an infinite length of another is the In the production of 3 to 5 meters will need to cut a section of its scrap rate is very high, which leads to the over-oil foaming process is also relatively expensive. High density, high rejection rate, high secondary processing procedures, etc.) The representative products are foamed silicone handlebar sleeve, bicycles, etc. Silicone handle sleeve, fitness equipment silicone handle sleeve, etc. 3. Core stick foaming process: this is a special foaming process is very smooth and rounded surface, but the application field is more fixed and more The outer surface used on the rollers of the machine is also called a silicone foam cover. This foaming process is also the not infinite length of the general is also about 3 to 5 meters will need to be cut, how to cut the length following customer requirements. In other words, the general roller is length, so the use of this process of the foaming silicone tube natural no problem, its advantage is that the foaming silicone tube is not a problem. The silicone tube will form a layer on the outside (glossy surface) with good compression resistance and other features common to foamed silicone tube. Its main representative products are silicone rubber foam rollers for printers, silicone rubber rollers for copiers, and so on. In the three processes of conventional silicone foam, oil furnace process, there will be fine particles on the surface after the production of these two, especially in the black foaming tube reflected in the particles are especially obvious. The oil furnace process of silicone foam tube as a handle product such as this article does not affect, and many also need to be sanded to polish the surface skin. That way you can't see the particles. The other conventional foamed silicone tube is not too good to solve this problem, the current market in order to solve the conventional Most of the cases of surface particles of foam silica gel are used to change the color, for example, change to blue, cyan, etc. can perfectly hide the white. particles. If the customer needs perfection and does not want a secondary process, then the mandrel foam process is the solution because the surface is smooth and has a high degree of flexibility. Also do not have over talcum powder natural surface is not to say, are this process loss of high prices lead to many people because of the price reason and Foldback.