Conveyor belt splicing method

Cutting method. Typically at center 45' to 60' of the conveyor, the full knee joint is good, i.e., the overlap joint

90% connection strength retention. The calculation formula is the total length of the entire lap joint:

L - full lap length, mm;?

Core tensile strength large area, N/(million·layer)

- with core layer;

0.75 - cold viscosity after 2h cure, conveyor belt , the shear strength of the bonding surface of N/MM2.

The quality and peeling of the adhesive layer is uniform by grinding and sanding, preferably using a heated wire wheel. To remove the glue, you must grind the core band

Break it, sand it clean, clean it with acetone after drying, then bake it with an infrared lamp with less heat to 70C, and then apply the adhesive.

For long-term adhesives such as neoprene, add 3% to 5% of a curing agent, usually a polyisocyanate, and apply both to peeling surfaces with rapid stirring

Generally Tu 2. Adopt the first dipping coating agent of 400g/m2, and the stickiness will be established. Apply adhesive in the second pass

About 350g/m2, and the adhesive temperature is established (usually 2530 minutes, wait for the weather). Infrared baking is used in winter.

When there is a sticky feeling, you should immediately bond from the middle to the plastic surface, leaving both sides empty.

Hold the glue surface on the right side of the hammer, which is the best for edge sealing. Then compact the plate and vulcanize it. The longer the time, the better. Good aviation glue can be driven after 20 minutes of sticking

, but 3 hours is better.

Rubber conveyor belts will inevitably suffer various damages, such as mixed traction belts, various weapons, such as power rods, drill pipes, etc., which may be torn longitudinally at any time during the processing. Embedded conveyor hack. (Especially lying prone on tubular steel cord conveyor belts and conveyors

), or using mechanical belt openings to close, rollers are damaged, cutting steel cords are exposed and damaged baffles, etc., resulting in lost< /p>

When the belt deviates, it can cause longitudinal tearing of the conveyor belt.

Rubber patching agent repairs defects quickly and makes economical maintenance and repair easier. Rubber putty is

based on a prepolymer compound, which is a two-component liquid mixed at room temperature in proportions of vulcanized rubber, polyurethane, room temperature curing molding, transportation

tape, metal machine A good body has high elasticity, high wear resistance and high toughness. Rubber patches, as shown in Table 5 Typical Liquid Properties -

44.

Table 5-44 High-efficiency liquid rubber patch is the American Rehabilitation (Defukang)

┌------┬-----┬----┬ ----┬---- ---┬┬------- -----┐

││Density Tensile Elongation│││Hardness Curing Shrinkage Curing Time│ │Basic operating time│

│/(G' CM-3)│/MPa│(Shore)│/│%/%│/hour│/Nun│

├------┼-----┼----┼--- - ┼-------┼-------┼-----┤

│1.18││31.6 78│600││12│8 8│

└ - ----┴-----┴----┴----┴-- -----┴-------┴----┘

Liquid Rubber Patch Repair Rubber Steel Core with Longitudinal Tear-F·Effective Point, but the effect cannot be used as adhesive mixture.

Small-diameter partial damage to the conveyor belt surface: Factory bandwidth I/5, the conveyor belt still has sufficient overall strength, but can be patched with liquid without leaking material.

The repair process is divided into three steps:

(1) Surface treatment. The purpose of the surface treatment is to enable better bonding with the conveyor frame repair compound. Sand the break into a rough 60'90 groove and clean the surface, this is critical to the success of the patch. Operation - According to the damage, cutting

Different bevel cutting, grinding wheel is the best, use cleaning fluid (such as acetone, etc.) for cleaning after cleaning.

Sectional conveyor belt tape

’s (2) withered plastic repair. Choose the putty in liquid form, mix the resin and curing agent in proportion, stir evenly, and apply the groove

. The general curing time is a few minutes to ten minutes. The repair work must be completed before curing. The groove should be larger so that the putty can be bonded to the cover without being damaged.

(3) Health treatment. Putty sulfides occur at the slope from the mouth to obtain their physical and chemical properties and bonding effect to the substrate. -

Prefer several hours to several days at room temperature as the first few hours of basic curing to reach the point of 70%-80% full cure, i.e. 1 day

It can reach 90% in 24 hours. The ID ambient temperature is high and the curing time is significantly shortened. Therefore, outdoor construction in winter requires additional insulation or temperature curing measures.

Conveyors can be used to connect and repair delamination machines, openers, cutters, grinders, drying glue machines for mechanization and automation

Tools, including domestic production.

With the application of nanotechnology, ceramics have discovered that MM-95 synthetic rubber can repair damage immediately

Aphids; belt; MM-SS steel ceramics can repair racks, rollers, etc.