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Jan 07,2023

Rolling mill manufacturers note that in spunmelt nonwoven production lines, the fiber web formed consists primarily of fibers overlapping within the plane, with very weak bonding in the vertical direction. As a result, the web can hardly withstand external forces from any direction and thus lacks practical applicability. Therefore, appropriate web consolidation techniques are required to enhance inter-fiber bonding, transforming the web into a nonwoven fabric with adequate longitudinal (MD) and cross‑directional (CD) strength. A hot‑rolling machine leverages the thermoplastic properties of fibers: under the combined action of high‑temperature heat from the press rolls and the high pressure generated between the two rolls, the fiber web deforms, melts, and bonds at the embossing points, thereby consolidating the loose web into a nonwoven fabric with specified mechanical strength. As an indispensable piece of equipment in spinning and meltblowing lines, the hot‑rolling machine requires the following routine management procedures: 1. During operation, personnel must not enter the space connecting the hot‑rolling machine to the web‑forming table; entry into the protective guard at the drive end for inspection is also prohibited. Touching safety devices is strictly forbidden to avoid triggering shutdowns. Additionally, do not touch the two heating rolls with your hands to prevent pinching or burns. 2. When the oil furnace is being heated, the hot‑rolling machine must be started, and the rolls should be kept separated to prevent thermal deformation. 3. Once the oil furnace reaches the set temperature, the hot‑rolling machine may only be put into service if no alarms are present.

Jul 01,2022

Overview of the Wire Drawing Machine System

Overview of the Wire Drawing Machine System High-speed wire drawing machines are primarily used for drawing copper wires. Their main electrical drive system comprises a wire-drawing motor, a wire‑feeding motor, and a wire‑winding motor. Other auxiliary components include a rocker arm (tensioning frame), positioning rollers, wire guide wheels, and wire supports. The wire-drawing motor drives the operation of the drawing wheel,

Jul 11,2022

What are the main features of a wire-drawing machine?

What are the main features of a wire drawing machine? A wire drawing machine is a type of equipment used in the production and processing of standard parts and other metal products. Its purpose is to draw wire or bar stock—produced by steel manufacturers or metal product companies—through the machine, thereby reducing the diameter, improving roundness, and refining the internal metallurgical structure of the material.

Jul 21,2022

What is a wire-drawing machine?

What is a guying machine? A guying machine is an essential component of power distribution lines. Its primary function is to balance the uneven tension in conductors and ground wires, stabilize tower structures, reduce the stress on towers, minimize material consumption, and lower overall costs. Throughout the construction process, it is preferable to use a permanent guying machine for towers instead of temporary guy ropes—typically made of hemp rope or steel wire—throughout the entire project.

Aug 01,2022

Some key points about calenders

A calender is a precision, versatile rubber‑processing machine primarily used in the rubber industry to produce laminates, sheets, and coated fabrics, as well as to apply adhesive coatings and perform friction‑induced treatment on textiles and steel cord fabrics. Calenders come in various configurations—two‑roll, three‑roll, four‑roll, and five‑roll—but three‑roll and four‑roll models are the most widely employed. A three‑roll calender is typically used for sheet release, single‑sided adhesive application or coating, or in tandem with another unit for double‑sided coating. Tire manufacturers commonly use four‑roll calenders to produce double‑sided adhesive‑coated carcass fabrics; five‑roll calenders are now rarely utilized.

Aug 10,2022

Some Common Knowledge About Calenders

The calender is mounted on a robust base frame and moves along two tracks via four wheels positioned on two axles at the base of the frame, with guide flanges fitted to two of these axles. The movement of the calender body is driven by an AC motor (0.37 kW) controlled by a variable-frequency drive.

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