Detailed tire refurbished value and refurbishment process

The current main products of Shanghai Yibin Company include: forklift tire retreading equipment, truck and bus tire retreading equipment, engineering vehicle tire retreading equipment, aircraft tire retreading equipment, including: vulcanization tank, grinding machine, tread press, rubber winding machine, Tire repairing machines, vulcanized steel rings, tire hot stamping machines, tire repair tools and other auxiliary equipment. Why retread tires?
There is great value. Maybe you are a car owner with a private car, thinking about how to make the family finances do more with less; or, you are a team manager, you want to buy from your hands every year. Into thousands of tires, but no matter who you are, in today's economic times, your first consideration is how to control costs. Truck drivers, airlines, construction companies, farmers and car owners are all based on one of the simplest reasons to buy retreaded tires. This is -- saving money.
The cost of producing a retreaded tire is lower than the cost of producing a new tire, so the price is cheaper, usually between 30 and 50% cheaper than the same new tire. Through the use of retreaded tires, the aviation industry (both military and civilian) can save $80 million annually. The refurbishment of car tires has saved the car transport industry more than $2 billion annually, so tire retreading is a very effective way to reduce the cost of your tires.
Why is tire refurbishment so good?
When manufacturing a new tire, its manufacturing cost is mostly on the carcass. The tread—the part of the tire that touches the ground—only accounts for a small fraction of the cost of a new tire. When the pattern of a tire has been smoothed and appears to be scrapped, most of the value of this tire still exists and needs to be restored. In fact, the service life of this tire has just begun.
Is the refurbished tire safe?
Refurbished tires are as safe and durable as new tires of the same type.
Refurbished tires are definitely safe!
In 1933, the President of the United States signed an executive order requiring all vehicles of the federal government agencies to use retreaded tires when changing tires. All civilian aircraft and military jets use retreaded tires. In fact, the United States is on the service aircraft. 80% of all tires used are retreaded tires. In 1933, only one Boeing 727 aircraft used 28,000 retreaded tires, and the average life of each tire tread reached 200 takeoffs and landings.
On average, each airline can be refurbished 6 times per tire, and some tires can even be refurbished 12 times.
It has been proven that retreaded tires are as safe and durable as new tires of the same type.
The professional tire refurbishment factory always implements strict industry standards at every step of the tire retreading process. The tire strength testing test initiated by the American Tireless Association clearly shows that a flattened tire has the same type of new tire. Tires are almost identical in strength to their carcass. Refurbished tires for various purposes, from passenger tires to large engineering tires, are used in the same way as new tires of the same type. Many transport teams plan to purchase two or more times when planning a new tire. Refurbished tires have become the norm in their tire budgets. Refurbished tires are also safe to use in everyday life, such as school buses, fire trucks, ambulances, patrol patrol cars, and thousands of private car owners.
For energy saving and environmental protection, please use retreaded tires.
Refurbished tires can save oil. The synthetic rubber in a new tire contains 7-8 gallons of oil. Renovating a tire of the same type requires only 2 to 3 gallons of synthetic rubber. It takes 22 gallons to produce a medium truck tire. Oil, and renovating this tire requires only 7 gallons of oil.
Tire retreading saves oil
Tires are basically petrochemicals, and 22 gallons of oil are needed to produce a new truck tire. Most of this oil is already included in the carcass used for tire rebuilds, so it is only necessary to add 7 gallons of oil to the tire. A fleet of about 100 tires per year, one can save 1,500 gallons of oil, while also greatly reducing the amount of carcass eventually accumulated in the dump.
Each retreaded tire is a recycled environmentally friendly tire
In North America, for example, in 1993, the use of retreaded tires saved more than 400 million gallons of oil, and the lifespan of more than 30 million tires continued rather than being thrown into dumps or dumps of used tires.
Tire renovation industry
What is tire retreading?
Described in a simple sentence: tire retreading is the process of picking and detecting a tire that is smoothed (ie, the carcass) and then attaching a new tread.
During the tire retreading process, the inspection of the carcass must be particularly thorough and careful, followed by grinding the tread that has been smoothed, and then attaching a new tread rubber to the carcass - this step and new The production of tires is very similar. There are many different retreading processes, but the ultimate goal is the same: the tread rubber is firmly bonded to the carcass by a certain temperature, time and pressure.
Tire retreading is a relatively mature industry. Since its inception in the early 20th century, the industry has grown steadily and there are now about 1,400 tire refurbished plants throughout North America. These tire refurbishers are large, small and diverse, with small factories renovating more than 20 car tires or truck tires daily, and large factories producing 2,600 or more retreaded tires per day. In addition, some retreaded tire factories have only refurbished some special tires such as agricultural machinery and engineering tires for civil engineering machinery. Together, all of these plants can renovate more than 30 million tires per year, consume 560 million pounds of synthetic and natural rubber, and have sales of more than $2 billion per year.
The long-distance bus transport company is the main market for retreading tires.
If tires cannot be refurbished, their interests will be seriously affected. The refurbishment of radial truck tires is a promise of new tire manufacturers (eg, some of the larger new tire manufacturers now guarantee that wire radial tires can be refurbished more than twice). In 1993, the car transport company refurbished more than 15.4 million tires, accounting for 40% of the new tires they bought.
Refurbished tires can be used in passenger cars, airplanes, sand and gravel transport trucks, container trucks, agricultural vehicles and civil engineering vehicles. The fastest growing aspect of the retreaded tire industry is the refurbishment of light truck tires, and the market potential for tire retreading is growing in North America and internationally.
Refurbished process
The tire retreading industry consists of the following steps:
Preliminary test
Polishing
Carcass preparation / repair
Tread treatment
vulcanization
final test
Preliminary inspection: A good quality refit tire must have a good foundation. The preliminary inspection will determine whether a smoothed old carcass can be used for refurbishment. This preliminary test may be the most important step in the process of retreading the tires. Through this step, it can be determined whether the carcass has defects in the production process of the new tire, whether there is unrepairable loss and excessive aging. In short, the carcass that cannot be used after refurbishment cannot be received directly.
When you decide to receive a carcass ready for refurbishment, it means that you have decided to put your company name on your final product. The initial test is the basis for the success of the entire tire retreading work.
Grinding: The tread that has been smoothed is ground from the carcass by sanding. The correct operation of the grinding process is critical to the process behind the tire retreading process. When grinding, the carcass is placed on a sander (a machine like a lathe), and then the carcass is inflated, and then the carcass is rotated while the head is sharpened to remove the flattened tread layer. The surface of the carcass is ground to a defined shape, size and texture to conform to the new tread.
Each type of tire has a specified tread width, profile and curvature. The carcass must be ground to the specified shape so that there is an optimum contact surface for the tire facing the ground. In the tire retreading plant, part of the professional skills of the professional technicians is that they can skillfully polish the carcass to the specified size (a polished carcass tends to be more precise and rounder than the original carcass size).
Carcass preparation and carcass repair: The damage left on the carcass after grinding can be repaired as long as it is within the allowable range. Patching professional technicians are well trained and they know which injuries can be repaired and which cannot be repaired. If the damage is too large, the tire can no longer be refurbished. The repair process is a crucial step in the tire retreading process. If the structure of the repair site is not strong enough, then the correct repair work must be: make the structure of the repair site at least as strong as the original structure. Operators of carcass repair must be professional and technical personnel. He should be well aware of his responsibilities to the end user and the responsibility of those of you and me who use recycled tires.
Tread fit: After all the repair work is completed, the polished carcass is ready to be affixed with a new tread so that the tread and the carcass are combined in two vulcanization processes: mold vulcanization and pre-vulcanization. Providing quality products, but no matter which method requires a technician with certain expertise to complete.
Mold vulcanization process: The tread rubber bonding process in the mold vulcanization tire refinishing process is very similar to the production process of tread rubber. One of the most common methods in many methods is to cure the vulcanization. The tread rubber is applied to the crown of the polished carcass (if it is required to completely renovate from the spigot to the spigot, some rubber should be attached to the sidewall) when the unvulcanized rubber is in the specified size. Once the posts are assembled, these prepared tires can be placed in a mold for vulcanization.
Pre-vulcanization process: As the name of this process, it can be seen that the tread rubber used here is pre-vulcanized by the tread rubber production factory through the mold. The tire refurbished factory selects various ribbons or rings according to the needs. The tread rubber of the pattern, width and thickness is applied to the prepared carcass. The effect after the bonding must be straight and flat without wrinkles. Then the prepared tire is placed in the vulcanization tank. vulcanization.
Vulcanization: Vulcanization is a process in which a new tread compound is tightly bonded to a prepared carcass. During the vulcanization process, the unvulcanized rubber gradually becomes a tough, firm material from a soft, sticky, stretchable material. Durable and tread with good driving and ground grip.
In the process of vulcanization of the mold, when the unvulcanized rubber is adhered according to the specified size, the prepared carcass to be vulcanized is placed in the mold, and when the mold is closed, the carcass is inflated to the appropriate The pressure, the expanded carcass presses the unvulcanized compound onto the mold to form a tread pattern, which is then heated for a certain period of time to effect vulcanization.
In the pre-vulcanization process, the vulcanization work is carried out in a vulcanization tank by the pressure generated by electricity, steam or a high-temperature liquid such as oil. The prepared carcass is placed after the new tread rubber is placed. In the vulcanization tank, the adhesive layer of the buffer rubber is vulcanized under a certain pressure and temperature for a certain period of time, so that the tread rubber and the carcass are tightly combined. The above description of the tire retreading process is too simple, but one thing to keep in mind is that whether the mold is vulcanized or pre-vulcanized, the end result is that the retreaded tire has the same toughness and resistance as its original new tire. Grinding.
Final inspection: The final step in the tire retreading process is the final inspection. At this stage, the tire retreading factory carefully inspects all refurbished tires to ensure that they are returned to the consumer with a completely quality product.
After the tire has passed the inspection, it should be marked or labelled like a new tire.
Today's retreaded tires are produced in a modern factory by well-trained professionals. During the tire retreading process, professional refurbishers carefully implement strict process standards on each process and from each tire. It can be traced back to the equipment that produced it. A good carcass can be refurbished.
Refurbished tires are safe and reliable
Refurbished tires are widely used in civil aviation, US military aircraft, school buses and various ambulances. Automobile transportation companies have basically relied on retreaded tires and long-distance transportation. Through years of practical use in a laboratory simulation test and the same use of all new tires, retreaded tires have proven to be as safe and durable as new tires.
Tire refurbishment is one of the best ways to save money
A retreaded tire that is qualified and properly maintained will have the same wear mileage as the new tire. In fact, the more expensive the original tire is, the more expensive it is to renovate the tire. Since many tires can be refurbished one or more times, throwing away a flattened tire without refurbishing will lose most of the value of the tire, regardless of Whether you are the owner of a private car or a team manager, retreading tires is the most effective and economical way to replace new tires.
Recycling of tires is the recycling of resources
Because most of the tires are made of synthetic rubber, a derivative of petroleum products. Therefore, tire retreading is the best way to save oil energy and reduce waste tire dumps. Every purchase of a retreaded tire is a specific act of resource conservation. Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn

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