What material is used for thermal bonding of black rubber flat belts?

The main components of special glue for rubber and plastic insulation materials such as dating sponge self-spraying glue are synthetic rubber, tackifying resin, cyclohexane, ethyl acetate, dimethyl ether, etc.

If the black rubber flat belt is thermally bonded, it is basically a hot vulcanized joint treatment. The joint materials used for joint treatment are generally hot vulcanized joint paste, unvulcanized core glue and unvulcanized surface adhesive.

Among them, the hot vulcanized glue is used for the bonding treatment of the belt and the unvulcanized core glue and the surface adhesive, which can ensure the bonding strength of the joint part and prevent the misalignment of the core rubber and the top adhesive.

The unvulcanized core rubber pavement plays the role of a middle pad in the middle layer of the belt, which is used to improve the joint strength of the joint part and ensure the joint effect.

The unvulcanized adhesive is used to seal the seam part, which plays a non-slip and wear-resistant role.

When the construction personnel select the joint material, the closer to the original belt material, the better. However, most of the joint materials used at present are general-purpose joint materials, such as imported hot vulcanized glue, SK823 with RIT unvulcanized core adhesive and RIT unvulcanized surface adhesive, which can be applied to the joint treatment of various materials.

When the joint is operated, the specific operation method is also different according to the different belt materials. For example, ordinary fabric belts need to be stepped treatment, steel ribbons need to be stripped of wire ropes, and PVG whole core belts need to be handled by butt operation. Compared with the cold vulcanization operation, the process is slightly more complicated, and it is recommended to choose a professional construction team for the operation.

Industrial Belt Joint Bonding Method:

1. Mechanical joints, one share refers to the use of belt buckle joints, this joint method is convenient and convenient, and it is more economical, if the belt is damaged during use, when you want to replace a new belt, this belt buckle joint is easy to replace, but the efficiency of the joint is low, easy to damage, and has a certain impact on the service life of the conveyor belt product.

2. Cold bonding joint, that is, using cold adhesive to joint, using adhesive as raw material, connecting the two ends of the conveyor belt together, the key to cold bonding effect depends on the glue used, whether there is seamless treatment.

3. Hot vulcanized joint, the conveyor belt interface of the hot vulcanized joint is completely closed, and it is not easy to be soaked by water.

First of all, the concept of industrial belts is very large.

In the case of PVC, there are hot melt (this method is the most common), cold bonding, and steel buckle (these are the same as mentioned above).

In the case of V-belts, most of them are directly melted.

In the case of rubber belts, it is vulcanized.

In the case of PU timing belt, the soldering iron will melt.

There are many, many more, and this company is only a part of it, so it is not complete.

There is cold adhesion and vulcanization.

The cold bonding process is simple, the construction is fast, and the effect is very good. However, it requires a high level of construction personnel.

Vulcanization is time-consuming and labor-intensive. It also works very well.

However, most of the power plants that are connected to the belt require vulcanization.

3. Intermediate connection method;

1.Basically, it is used after vulcanization.

2.In one is to connect the belt buckle on both ends (the belt buckle is generally made of steel) 3Cold bonding should be done by connecting the cloth layers at both ends and gluing them with rubber adhesive.

Flat belts are divided into conveyor belts and transmission belts.

Conveyor belt: the maximum strength layer is: polyester, aramid, etc.

The conveying surface is: PVC, PU, rubber, etc.

Transmission belt: the maximum strength layer is: nylon sheet base, polyester, aramid.

The friction layer is: rubber (NBR) is the majority.

There are many brands, recommend Aitop.

The flat belt material can be sheet base, rubber, or PU.

The automatic buckle is basically rectangular. See the answer

First of all, what belt to stick, the coal should be transported with a black rubber belt, with glue, glue plus wheel press, also with a hair dryer to blow hot and then glued and then pressed with wheels, the key is what glue you use!!

For the repair of industrial belts, cold vulcanization is mostly used at present. Unlike the traditional hot vulcanization method, which requires the cooperation of a large vulcanizing press, cold vulcanization repair only requires simple repair tools and special repair materials to complete on-site repair, which can be said to be quite simple and fast.

Next, according to the steps of bonding, what tools are needed to glue industrial belts?

Step 1: Polishing.

The purpose of grinding is to increase the roughness of the belt, increase the contact area between the belt and the repair strip, and improve the adhesion.

Grinding tools: high-power low-speed angle grinder, tungsten carbide grinding disc.

High-power, low-speed angle grinder with tungsten steel discCompared with traditional grinding tools, the grinding efficiency is high, and it can effectively prevent the occurrence of rubber aging. At present, the more commonly used angle grinders, such as L1202, are mostly used with tungsten carbide discs with appropriate particle size.

The grinding thickness should not be less than the thickness of the repair strip, so that the repair strip is attached to the surface of the belt in an embedded way, and the cleaning cleaner scratches the situation.

Step 2: Clean up.

After sanding, use more residuesSweeping brushClean, after cleaning, try to use detergent to clean deeply;

Step 3: Gluing.

After mixing the mixture SK313, useGlue brushesApply 2 times to the damaged part of the belt, and apply cold vulcanized glue to the adhesive surface of the RIT belt repair strip.

Step 4: Fit.

When the glue sticks slightly to the back of your fingers, attach the repair strip to the damaged part of the belt, and then use the compaction roller to roll it firmly and expel the excess air.

Tool required: Compacting rollers.

The compaction roller is matched according to the different belt specifications, and the matching specifications are also different, and the use of compaction rollers can effectively remove the air between the belt and the repair strip to ensure that the two are fully in contact and ensure the bonding effect.

There are a lot of glues to meet the belt bonding, and the glue for rapid belt bonding needs to have high-strength bonding between rubber and rubber, rubber and metal, rubber and fabric, and fabric and fabric. The cold vulcanized adhesive SK313 is a good choice.

This can be stained with a belt and must be a high polyester material. It can't be cowhide. So rest assured, it can all be combined.

The main connection methods of mine belts are mainly divided into two types: 1: chemical connection 2: physical connection Chemical connection is divided into two categories, which are:

The specific proportion of heat treatment (vulcanized joint) 1 1 The specific proportion of cold treatment (gluing) is The physical connection is mainly: connecting with a belt buckle Zhengzhou Diput is still very good to make joints, I am Henan Zhongyu Power Plant, the quality of our previous joint workers is first-class, and what is more commendable is that the site is really clean after the work.

The O-belt that can be hot-melt bonded is made of this cowhide.

What glue is used for rubber conveyor belt bonding? This depends on the specific situation of the rubber that needs to be bonded.

For example, the bonding between rubber and rubber, rubber and fabric, is more typical of the bonding between the belt and the repair strip when the belt is cold repaired and cold-jointed.

For example, the bonding between rubber and metal is more typical of drum lagging

When bonding with different media, the materials used may be different.

The construction personnel can choose the glue used for the bonding between rubber and different media, or they can choose a glue that can be used for rubber and rubber bonding at the same time, and can be suitable for bonding between rubber and metal.

In order to facilitate on-site operation, it is recommended to choose a cold vulcanized glue with strong bonding adaptability, which can bond both rubber and metal at the same time. It is a general-purpose glue.

At present, the more commonly used general-purpose glue is mostly imported SK313, a kind of two-component glue with relatively high comprehensive performance, and the glue is equipped with a curing agent, the curing speed is more dominant, and the bonding ability is also significantly advantageous than that of ordinary glue.

In fact, the on-site operation is not complicated, but the details determine success or failure, every detail must be very careful, the construction personnel must be in strict accordance with the bonding process when carrying out the on-site bonding operation, in order to ensure the final bonding effect.

Give it a try.

It has good viscosity and toughness, and has a wide range of dry and wet ingredients.

The glue for bonding between the belt and the belt bonding needs to meet the bonding of rubber and rubber, rubber and metal, rubber and fabric, fabric and fabric, and can meet the daily belt repair of coal conveying system, pulley lagging and bonding of various rubber liner materials.

Because the environment in which the belt is used is extremely harsh, such as underground coal mines, flame retardant glue is required, which puts forward higher requirements for the glue used.

It is non-flammable and has high operating temperature requirements.

Long shelf life and easy storage.

The operation is simple, and one person can work at the same time.

In case of emergency repair, it can be used quickly.

There are not many glues on the market that can meet the above characteristics, so you must choose carefully. This type of glue has two components and uses cold vulcanization bonding, such as the most commonly used SK313, which is composed of 1kg of adhesive + 40g of hardener.

This situation should be treated separately:

The flat belt is PVC vulcanized butt, the tension length is surplus, and the two ends of the fracture can be re-cut into a serrated shape: there must be at least 3 serrations, and then glue them, and then vulcanize them, and they can be reused after cooling firmly.

The flat belt is made of PVC material, and the length of the belt is not enough, so there is no need to repair it, and it is necessary to purchase a new PVC flat belt to replace it.

The flat belt is a canvas butt, and the broken part of the canvas flat belt needs to be trimmed and polished, re-cut into a zigzag shape, and then bonded and riveted (rivets if the situation permits), and the glue can be re-tightened and adjusted after it is firm;

If the flat belt is made of rubber or other material, or the flat belt is very thin (less than 2mm), there is no need to dock again, and a new belt needs to be purchased.

To use a special spot welding machine, adjust the belt to the loosest first, and then cut the two fractures flat, clean the burrs, and then stack them together, the length of the stack is at least about 2 cm, both sides are clamped with tools such as forceps, pay attention not to stack deviations, and then weld a few points with a welding machine to fix, see if there is no problem, and then weld in a straight line, try to weld a little tighter, and deal with the interface and burr after welding.

The manufacturer has special tools....There are two electric heating molds in total, first of all, the two ends of the broken belt should be treated, and then the electric heating mold should be turned on, and the belt should be placed in the middle of the two molds to heat the ......Don't take too long, half an hour is OK

If the belt is long enough, overlap it first and then drill it and fasten it with screws.