What adhesive is used for drum lagging in Germany

Drum lagging especially cold lagging has relatively high requirements for adhesives, which can meet the bonding between rubber and rubber, rubber and metal, fabric and fabric, rubber and fabric, and this kind of adhesive is bonded by cold vulcanization, so this kind of adhesive is called cold vulcanized adhesive.

When it comes to cold vulcanized adhesive, we have to mention the blue RIT wear-resistant rubber plate with semi-vulcanized layer, cold vulcanized adhesive and semi-vulcanized layer can form a cold vulcanization reaction, and the simple understanding is that the semi-vulcanized layer can be melted on the surface of the drum steel plate under the action of cold vulcanized adhesive, and its bonding strength is much greater than that of ordinary rubber plate without semi-vulcanized layer for drum lagging and lagging of rubber plate. Therefore, when choosing a cold vulcanized adhesive for drum lagging must choose a wear-resistant rubber sheet with a blue semi-vulcanized layer. On the contrary, if applied to a rubber sheet without a semi-vulcanized layer, its adhesive strength is much smaller.

The topic is a bit far, to get back to the point, roller lagging should be cautious when choosing cold vulcanized adhesive for drum lagging because many glues will say that their glue is cold vulcanized adhesive, but in fact, it is not. At present, I know that the cold vulcanized adhesive is currently used more and has stable bonding, such as SK313, the former is used in the cold vulcanization repair of conveyor belts, joints and roller lagging rubber, and other brands are not much contacted, and you need to screen carefully.

<> speaks with **, and the drum cold lagging can also use imported SK313.

<> drum package number call side glue with cold potato rubber viscose SA3000 type.

Drum cold lagging needs to be used:

1. Cold vulcanized adhesive.

2. Metal chain cloth treatment agent.

3. Cleaning agent.

4. Sealing glue (T2 composite glue or rubber repair agent).

The most important point of drum lagging is the material, the adhesive used to bond the rubber sheet, the material tools used in the drum lagging are: low-speed angle grinder, cleaning agent, metal treatment agent, cold vulcanization adhesive SK313 and curing agent UT-R40. With these, it is not difficult to lagging the roller.

1.Grinding and cleaning

Use an angle grinder to polish the surface of the drum until it is rough and rust-free, then clean the surface stains with a cleaning agent and wait for it to dry.

2.Apply a metal primer

Apply a layer of metal primer to the surface of the drum and apply it evenly.

3.Mix the glue and paint

The cold vulcanized adhesive SK313 and the curing agent UT-R40 are mixed and mixed according to a certain proportion, the first pass of the mixture is applied on the surface of the drum and wait for drying, the second pass of the mixture is applied after drying, and a layer of mixture is also applied on the rubber sheet. (Rubber sheet with semi-vulcanized layer is painted once, without it is painted twice).

4.Fit

When the back of the hand is slightly sticky twice, you can start pasting, and gradually advance when pasting, and roll back and forth with compaction rollers to exhaust the internal air so that the adhesive surface fits completely.

The strength, efficiency and life of cold lagging are better than other lagging methods, economical is one thing, the glue process is also very good, the cold vulcanization adhesive and curing agent are mixed and the curing speed is fast, the bonding strength is large, because the metal treatment agent is brushed, the bonding surface is also relatively wide, in general, the cold lagging process is the best efficiency and strength of a lagging method I have ever seen.

For drum cold lagging, we use SK313

Chemlock adhesive in the United States.

Comparison project Xiao Ai drum cold lagging hot vulcanized drum lagging

Construction features On-site lagging of rubber, no need to disassemble the drum and return to the factory for lagging and long delivery cycle.

Replacement frequency Good wear resistance, no need for frequent disassembly Wear out quickly, need a large number of spare rollers.

Effect Wear resistance, impact resistance, aging resistance, excellent reliability Easy to wear, easy to age, need to be replaced frequently, labor intensity, and many potential safety hazards.

Drum protection allows for an unlimited extension of drum life.

In addition to the bearing needs to be checked and replaced regularly) the surface wear is large after the glue is removed; Continuous cutting of the drum wall greatly shortens the life.

Service life Made of high-quality natural rubber, the service life is 4-6 times that of the hot vulcanizing drum lagging The service life is short, a large amount of backup is required, and frequent disassembly seriously affects the life of the system.

The overall cost is low and high.

The above is very comprehensive, thank you!

There is also a cold vulcanized glue provided by Zhengzhou Diput. Professional roller lagging company.

If you want to know what materials are needed for drum lagging , you must first determine the way of lagging and cold lagging materials are still very different, but now the adhesive technology is developing rapidly, cold vulcanization has been able to reach the same level as hot vulcanization, and it is faster and more convenient, so it is welcomed by more people.

In the case of drum cold lagging of the drum, I will first give you a brief introduction to the operation steps. First of all, it is necessary to remove the residual rubber of the drum, and use an angle grinder to grind the drum with a tungsten steel grinding disc, and the grinding thickness is about 30u m. Then use a cleaning agent for deep cleaning to remove impurities such as oil stains on the surface to ensure that the rubber sheet and the drum can be seamlessly bonded.

Due to the metallic nature of the drum, it is best to use a metal treatment agent to remove rust and protect the drum, as well as improve the bonding performance. The next thing is to apply the adhesive, with the cold vulcanized adhesive must be a rubber plate with a semi-vulcanized layer, this must be noted, there are many counterfeit products on the market, but this kind of rubber plate still needs to be polished to use, with a semi-vulcanized layer is not needed, it will automatically vulcanize with the cold adhesive SK313. After the bonding is completed, be sure to use a compaction roller to compact the rubber plate to avoid a gap between the roller and the rubber plate, which will lead to problems such as easy falling off of the rubber plate in the later stage.

Therefore, the tools roughly needed for drum cold lagging are: angle grinder, tungsten carbide grinding disc, cleaning agent, metal treatment agent, gluing brush, cold vulcanized adhesive, rubber plate with semi-vulcanized layer, and compacting roller.

Basic information of the lagging roller.

Drum diameter selection: 25mm, 32mm, 38mm, 42mm, 50mm, 57mm, 60mm, 76mm, 80mm, 89mm.

Drum material selection: carbon steel galvanized, carbon steel chrome plating, carbon steel rubber, aluminum alloy, stainless steel, ABS, etc.

Pulley type selection: non-powered rollers, single-chain rollers, double-chain rollers, "O" belt rollers, conical rollers, troughed rollers.

Drum fixing method: spring press-in type, internal tooth shaft type, full flat tenon type, through shaft pin hole type.

The lagging material can be natural rubber, nitrile rubber, neoprene, EPDM, polyurethane, etc.

Lagging vulcanization bonding methods: cold vulcanization bonding and hot vulcanization bonding.

Affect the quality of the lagging roller.

1. The quality of rubber;

2. The adhesion technology adopted, the lagging technology includes hot vulcanization and cold vulcanization, but the mainstream of the market has been replaced by the hot vulcanization process has been replaced by the cold vulcanization process;

3. The construction process and the technical degree of the lagging workers also have a certain impact on the quality of lagging work;

4. Analysis and treatment of different conditions by engineers of the lagging company;

Users must be cautious when choosing a manufacturer, distance and practice allow, can go to the manufacturer to inspect and understand, communicate with its engineers, and make a systematic communication for different problems, so as to better meet your needs and find the right business.

Drum lagging is an important part and component of the belt conveying and transportation system, the pulley after lagging can effectively improve the operation of the conveying system, protect the metal drum from being worn, the rubber surface of the diamond pattern or herringbone pattern, can increase the friction on the surface of the rubber plate, can effectively prevent the sliding friction between the drum and the belt, reduce the belt slippage, reduce the material bonding on the surface of the drum, thereby reducing the deviation and wear of the belt, improve the operation efficiency, and make the drum and the belt run synchronously, so as to ensure the high efficiency of the belt. Large-volume operation. Widely used in: power plants, coal mines, cement plants, steel, metallurgy, coal, fertilizer, grain depots, ports and other industries.