Steel Cord Belt Joint Procedure

Saturday, 6 July 2024
The method has been developed on the basis of numerous laboratory tests, which are also here described. Moreover, this central rubberized section ensures the safe use of different belt constructions with different belt thicknesses. Rubber edges are applied on both belt sides, coated with solution and dried well. There are two types of hot splicing material for conveyor belts, including Uncured Cover Rubber(Top Cover) and Uncured Intermediate Rubber(Tie Gum), they are used to join or repair fabric & steel cord belts by hot vulcanized belt splicing. Then you can follow the step-by-step instructions. The bars are 1-2 mm (1/16 inch) thinner than the belt. It would be best if the belt fastener could be reused again, since it is an expensive component which should be durable. 173–182, BŁAŻEJ R., JURDZIAK L., KOZŁOWSKI T., KIRJANÓW A., 2018, The use of magnetic sensors in monitoring the condition of the core in steel cord conveyor belts – Tests of the measuring probe and the design of the DiagBelt system, Measurement, Vol.

Steel Cord Belt Joint Procedure Guide

To get the most out of this page, you may first watch the animation on the left. It can enhance the working life of steel cord splices, and improve wear resistance, corrosion resistance, and impact resistance of the steel cord belt. The rubber between the steel cords is removed. Moreover, filling the inside of the cords with rubber protects against corrosion and has a good effect on their durability. When the vulcanization procedure, or "cook", is completed, the resulting splice should be inspected for any visible defects that might indicate a weakness. Additional leakage leads to product loss, can contribute to additional build up on pulleys and create more belt maintenance work. During the vulcanization process of the conveyor belt, the control of vulcanization temperature and pressure is a key issue. Perform any other duties as may be assigned by the Engineers from time to time.

Steel Cord Belt Joint Procedure Instructions

In the actual operation, the conveyor steel cord belt breaking protection and monitoring device is mainly installed on the conveyor. Training & Development. As steel cord conveyor belts are vulcanized during the production process, rubber penetrates into steel cords. Strengthen the quality and process management of the conveyor belt joint, and strictly follow the joint operation procedures; 2.

Steel Cord Belt Joint Procedure Cost

DJS_BA-1 longitudinal tear protection device is commonly used in coal mining. There is no need to build up worn sections when splicing and repairing a worn belt. Splicing Kits for Steel Cord Conveyor Belts. Finger splices must be preformed in a single "cook. We process personal data collected when visiting the website.

Steel Cord Belt Joint Procedure Template

The edges are tapped thoroughly with a mallet. The end customer is not only looking for a quality belt that he can depend on, but also wants to save downtime on maintenance. A steel cord splice consists of removing the cover on the two ends to be spliced, stripping the cables, overlapping them and vulcanizing them back together. It is applied like a second core rubber sheet. Self-curing repairs generally do not last.

Steel Cord Belt Joint Procedure Code

It has high tensile strength and wears resistance. The belt fastener can be produced in two or more sections depending on the belt's width and the crowning of the drive pulley. Mechanical joint generally refers to the use of belt buckle joint, this joint method is convenient, fast and more economical, but the joint efficiency is low, easy to damage, on the conveyor belt Product lifetime has a certain impact. In practical applications, the integrity of the splice is critical to minimizing the risk of downtime. The hot vulcanizing procedures offer added durability that other methods lack and extend the longevity of a belt. The free samples are supported to send for your testing. Why has the vulcanizing method been discarded by many? In the past, Muller Beltex has done a lot of research on shortcomings of existing belt fasteners that are being used on steel cord elevator belts. The prime advantage of a vulcanized splice is that the hot vulcanized splice is nearly as strong as the belt itself, the splice results in longer belt life, and because of that, conveyor belt downtime is reduced. 90% of the actual belt strength is retained in a vulcanized joint. It can be executed in dusty environments and is suitable for all types of belts with varying widths and thicknesses.

Steel Cord Belt Joint Procedure Step By Step

It is a positive and a desired phenomenon allowing the belt to reach its required properties and ensuring its reliable and long operation on the belt conveyor. The longest operation time is required, so that it will reduce maintenance cost and have the shortest possible downtime. With steel-cord belts and finger splices, it is important that the press be large enough to cure the splice in a single setup to avoid undesirable rubber flow and cord displacement. Each third of the instructions is followed by a video of real splicing works for better understanding.

Steel Cord Belt Splicing

If it is necessary to shorten the belt(s), a wedge-shaped strip of approx. 300 mm (12 inches) longer in the longitudinal directions. In order to ensure the normal operation of the conveyor and avoid the long-term production stagnation caused by the fracture and tear of the conveyor belt, we need to install the conveyor belt broken and tear protection and monitoring device. Conveyor Belt joint methods are: Mechanical Joints, BELT JOINTING SOLUTIONS – COLD VULCANIZING CEMENT, hot vulcanization joints and other commonly used methods. Restricted use of cookies in the browser configuration may affect some functionalities of the website. Conveyor Belt Hot Splicing Application. The bond can often be improved by simply putting weights on the belt during the cure interval. Carry out repairing of belt vulcanizing machines and tools. As the old conveyor belt has been used for many years and has been bent many times, delamination has occurred between the steel rope and the rubber, and the galvanized layer of the steel rope has also been damaged due to the reaction with various elements in the rubber.

Approximately half a metre behind the splice area a crossline is drawn at right angles to the centre line as a reference line. The working is based on clamping forces and friction. The function of anti-tearing protection device is to control the belt conveyor to stop in time when the belt longitudinal tearing accident occurs, so as to prevent the tearing accident from expanding. Wear in the elevator. Using the mouse, simply click the desired chapter. Heavy duty industry demands the utmost performance of components used in elevators. The longitudinal tearing of conveyor belt will not only cause the loss of equipment, but also seriously affect the production progress.

Stripping Away the Cover Stock. Meanwhile, if the belt is worn and broken during use, it needs to trim broken parts and produce new jointing for splicing. Fill required checklist for condition of belt conveyors. All the additional items that will be fitted on the belt like elevator buckets, bolts and belt fasteners are in sense foreign objects to the belt, which in the long run could result into stress and wear, due to the pressure of these parts while running over the pulleys. The ALMEX Flexible Platen contours to the belt regardless of wear. After several minutes allow temperature to rise to 142°C (290°F). The only way to deal with this kind of conveyor belt is to increase the overlap length of the joint. The press applies pressure consistently across all surfaces.
Comparison Chart | | FASTENERS | COLD SPLICE MATERIAL | HOT SPLICE MATERIAL | |-----------------------|----------------------------------------------------|--------------------------------------------------------------------|-----------------------------| | STRENGTH | 50-80% | 80% | 80% | | DOWNTIME | 1 TO 6 HOURS | 4 TO 8 HOURS | 4 TO 8 HOURS | | EXPECTED LIFETIME | Short (25% belt life). The amount of increase depends on the degree of damage to the conveyor belt rope. If this additional part would not be applied, the warp cords could shift and could possibly be pulled out. Mechanical joints, cold-bonded joints and hot-vulcanized joints can be used as needed. Working platform will be removed. The belt ends have to be tensioned as much as possible to avoid sag. The ends are shaped like matching ends of shallow steps. The joint will be taken out in a short time and damaged. If your belts have been vulcanized this likely won't happen, because there is no irregular surface to 'hang-up'. The Uncured Cover rubber&Uncured Skim Rubber is unvulcanized raw rubber film. The position and the number of bolt holes can either be calculated by Muller Beltex engineers through a calculation program, knowing exactly how much safety the clamp provides related to the belt strength, or determined by our customers engineers. Installing Instructions. Vulcanized splices require the cutting away of layers of rubber covers and fabric carcass to let the belt ends be overlapped and joined. Protective Film Color, Sizes, or per roll measurement can be customized.