เรารู้คำศัพท์ จากอังกฤษเป็นไทยแล้ว ต่อมาเรามารู้ความหมายของคำต่างๆที่เกี่ยวข้องกับระบบลำเลียง สายพาน ในภาคภาษาอังกฤษ-อังกฤษ กันนะค่ะ และในเร็วๆนี้ ทีมงาน สายพาน ไทย ตั้งใจจะนำศัพท์แต่ละคำมาอธิบายความหมายโดยใช้การบรรยายและรูปภาพ เพื่อให้สามารถเข้าใจได้มากขึ้น คอยติดตามกันต่อไปนะค่ะ............
Adhesion
A firm or steady contact between two surfaces. In rubber, generally it applies to the "grab" of rubber to rubber or rubber to metal, fabric, plastics or other components of a finished product.
Angle of Repose
The maximum angle at which a given material will stay at "rest". Example: the angle of stockpile sides.
Abrasion
Wearing away by Friction.
Across the line starting tension
Tension developed in a belt when full electrical power is applied to the drive system.
Adhesion
Basically, the adhering, clinging, bonding or sticking of two material surfaces to one another, such as rubber to rubber, rubber to metal, rubber to wood, rubber to fabric.
Adhesion failure
The separation of two adjoining surfaces due to service conditions.
Adhesive
A material which, when applied, will cause two surfaces in contact with each other to stick together.
Adhesive coating
A coating applied to a surface to increase its bond to an adjoining surface.
Adhesive fabric
A fabric with a surface treatment which will bond two surfaces together when interposed between them.
Aging
To undergo changes in physical properties with age or lapse of time.
Air bomb aging
A means of accelerating changes in the physical properties of material by exposing them to the action of air at elevated temperature and pressure
Air checks
The surface markings or depressions which occur due to air trapped between the material and the mold or press surface.
Air curing
The vulcanization of a rubber product in air as distinguished from vulcanizing in a press or steam vulcanizer.
Air oven aging
A means of accelerating a change in the physical properties of rubber compounds by exposing them to the action of air at an elevated temperature at atmospheric preaaure.
Air trap
See air checks.
Ambient temperature
The environment temperature surrounding the object under cinsideration.
Angle of repose
The angle to the horizontal which a material will naturally assume when dropped in a pile.
Angle of slide
The angle at which material begins to slide down an inclined surface.
ANSI
American National Standards Institute
Antis lip surface
A specially treated surface to obtain greater than normal traction.
Arc of contact
(1) The portion of a curved surface which is engaged.
(2) In belts, it refers to the portion of a pulley which is engaged by the belt and is usually expressed in degrees.
Automatic take-up
A mechanical device to maintain proper tension in a belt automatically compensating for belt stretch or shrinjage in service.
Backstop
A mechanical device for preventing a loaded, inclined conveyor or elevator belt from running backwards after the belt has been stopped.
Bare back
The textile faces of an article which is free of any treatment or covering.
Bare duck
The duck surface of a fabricated article wherein the exposed duck surface is free of any covering.
Bare duck belt
A belt in which at least one side has the exposed duck surface free of any covering.
Bare pulley
A pulley whose whose face surface is not covered or lagged.
Bead rubber
An extruded polymeric compound used to fill the void between butted joint of two pieces of fabric.
Belt
A flexible reinforced band placed around two or more pulleys to carry materials from one place to another.
Belt carcass
See carcass.
Belt clamp
Beams or metal plates secured transversely on both sides of belt ends to hold the ends in a desired position.
Belt cleaning device
A scraper or rotating device pressed against the belt surface to remove material stuck to the belt
Belt conveyor
A mechanical system composed of suitable head, tail, bend pulleys and belt idlers or a slider bed to handle bulk
Belt drive
An assembly of power-driven pulley (s) used to transmit motion to a conveyor or elevator belt.
Belt duck
An open weave duck made from plied yarns with strength predominately in the warp direction. Used primarily in the manufacture of belts.
Belt fastener
A device for holding the ends of belt together.
Belt grade
A Classification of belting according to the quality and properties of the belt cover.
Belt modulus
The ratio of stress to strain.
Belt sag
The amount of vertical deflection of a conveyor belt from a straight line between idlers, usually expressed as a percentage of the center to center spacing of the idlers.
Belt Slip
The action that takes place, causing a differential movement between the pulley surface and the belt.
Belt tracking switch
A limit switch actuated by the edge of a conveyor belt when the belt moves abnormally to either side of its centered path.
Belt training idler
An idler having a belt-actuated swivel mechanism to control the side run out of a conveyor belt.
Belt turnover
A system of pulleys arranged to turn a belt over. Frequently used to prevent building-up on return idlers by turning the dirty side (carrying side) up. See also twist.
Belting deflector
A mechanism which deflects the conveyor material off the belt at specific points along the conveyor.
Belting, flat conveyor
See flat belt.
Bend pulley
A pulley used to change direction of belt run.
Bias angle
The smaller included angle between the warp yarns of a fabric and the diagonal line across the warp yarns.
Bias cut
A cut of a textile material made diagonally at an angle less than 90 degrees to the longitudinal axis.
Bias laid
Material laid on or wrapped around so the warp yarns are at an angle less than 90 degrees to the longitudinal direction.
Bias seam
The seam at which bias cut fabrics is joined together.
Bottom cove
The protective rubber covers on the surface contacting the driving mechanism of a conveyor belt.
Breaker ply
An open weave fabric used next to the carcass fabric and / or in the cover to improve the attachment to the cover to improve the carcass and to improve cover cut and gouge resistance.
Breaking strength
The tensile which a textile yarn or cable, a steel cord, or a belt is at rupture.
Bucket
One lf the cups on an elevator belt.
Bucket cover
The cover of an elevator belt next to the carrying buckets.
Bucket elevator
Belt with buckets attached.
Buckled ply
A deformed ply, usually the result of a fold or wrinkle. This distorts it from its normal plane.
Carcass
The fabric, cord and or metal reinforcing section of any rubber product such as a belt, as distinguished from the rubber.
Carcass break
A ply or plies of fabric ruptured by impact or gouging.
Carcass tear strength
The resistance of a belt against tearing.
Carrying run
The portion of a conveyor that carries the load between the loading and discharge points.
Carrying surface
The outward face or side of the belt which carries the conveyed material.
CEMA
Conveyor Equipment Manufacturers Association.
Cement
A mixture of polymeric compound or elastomer used as an adhesive or sealant.
Cemented edge
An application of cement around the edge of a fabricated product with or without internal reinforcement for proteciton or adhesion. (A form of Capped Edge.)
Cemented end
A belt end sailed with the application of elastomeric cement.
Center roll
The horizontal roll between the side toughing rolls.
Center - to - center
The distance between the center of row pulleys or idlers. Also called centers or center distance.
Checking
Short shallow cracks on the surface generally due to effect of destructive action of environmental conditions.
Chevron
Abridge or profile arranged in a Vee shaped configuration on a belt carrying cover to stabilize material carried up an incline.
Chute lining
Highly abrasion resistant elastomeric lining in a chute to protect the metal chute from abrasion wear.
Chut slope
Angle relative to the horizontal a chute is inclined.
Cleated belt
Transverse raised sections on a conveyor belt to stabilize material carried up an incline.
Closed belt conveyor
A moving, endless conveyor belt formed into a tubular shape by joining its edges while carrying material, and opening the edges while in motion to receive and discharge material.
Coefficient of Friction
The ratio of the force required to move a package across a belt surface to the weight of the package.
Cohesive
Tendency of a material to stick to itself.
Cold splice / bond
Usually the joining of two or more sub - straits together , using a two - part cement that is caemically cured without using supplemental heat from an external source .
“Cold bond cement”
Usually is an uncured mixture of varied elastomers, chemicals, and solvents that will not cals and solvents that will not selt - cure or vulcanize unstill mixed with an activator to create a chemical vulcanization
Compound
A mixture of a polymer (s) and other materials to give the desired chemical and physical properties in the elastomeric components of a belt
Conveyor
A system for the continuous Movement or transport of bulk materials, packages or objects along a predetermined path.
Conveyor belt
A belt that carries materials from one place to another.
Conveyor belt stretch
The increase in ble length which takes place when tension is imposed. Stretch is either elastic or permanent. Elastic stretch is a temporary change is length which varies directly with the pull. Permanent stretch is the residual change in length after tension has been removed; it generally accumulates over a period of time.
Conveyor Frame
The supporting structure for idlers, drive etc., also referred to as conveyor boom.
Conveyor width
In belt conveyors, the width of a belt.
Cord
Several strands of yarn twisted together.
Cord belt
A belt with textile or steel cords for the longitudinal tension bearing member.
Cord fabric
A fabric with plied or cabled yarns in the warp direction and a light weight filling yarn spaced only sufficiently to process the fabric.
Cotton
A natural fiber of high cellulosic content.
Count
In fabric. The number of warp ends, the number of filling picks, or both in a square inch of fabric.
Conunter weight
In conveyor belting, the weight applied to the take - up assembly to maintain proper belt tension.
Cover
The outer component of a belt.
Cover splice
The transverse joint formed by connecting two lengths of cover stock.
Cover surface profile
A cross - sectional view of the cover surface.
Cover wear
The loss of material during use due to abrasion, cutting, or gouging.
Cracking
A sharp break or fissure in the surface. Generally due to excessive strain.
Creep
(1) The deformation occurring with the lapse of time in both cured and uncured rubber, in a body under stress in addition to the immediate elastic deformation. Some related terms and properties are stress - relax -ation , hysteresis , damping ,flow ,compression set and viscosity , See Cold Flow , (2) In belts , the action of a belt atlternately losing speed on the driving pulley and gaining speed on the deiven pulley .
Crown
The difference between ediameter at the center and at the edes of a pulley or a roll.
Crowned Pulley
A pulley with a greater diameter at the center than at the edges.
Cure
The act of vulcanization.
Cure time
Time required, at a given temperature, to produce optimum physical properties in an elastomer.
Cruing temperature
The temperature at which the rubber product is vulcanized.
Curl
The action of the edges of a belt bending upward on the carrying run and downward on the return run. Also called cupping.
Cushion breaker
A leno or cord breaker imbedded in a belt cover.
Cut belts
See cut edge.
Cut edge
The uncovered edge of a laminated product, such a belt, created by cutting after vulcanization.
Cut resistance
The ability of a belt covers to withstand the cutting action of sharp objects.
Decking
A protective covering over the return run of a belt conveyor.
Deflector
A board or plate at an angle across the path of a belt traveling over a flat surface to transfer material off that belt.
Deformation
Any change of form or shape produced in a body by a stress.
Discharge
Removal of material from a belt.
Discharge Hood
Device attached to discharge end of conveyor to direct material straight down from the head pulley.
Drive
An assembly of electrical and mechanical parts that provide motive power to a belt.
Drive Pulley
The drive pulley is used to drive the conveyor belt, may be smooth faced, crowned wing, or rubber lagged, depending on the friction necessary to drive the belt.
Drive, Single
A one - pulley drive.
Drive snubbed pulley
An undriven pulley located close to the drive pulley to provide a greater arc of contact around the deive pulley.
Drop ply
The omission of a reinforcing ply for a specified distance from each edge. Usually the bottom or next to bottom ply in flat conveyor belting.
Dual drive
A belt driving system employing two adjacent pulleys each powered with its own motor.
Durometer
An instrument for measuring the hardness of rubber. Measures the resistance to the penetration of an indentor point into the surface of rubber.
Durometer hardness
An arbitrary numerical value which measures the resistance to penetration of the indentor point of the durometer. Value may be taken immediately or after a very short specified time.
Dynamic fatigue
Loss in properties of a material when continually subjected to flexing and or cyclic stress.
Dynamometer
An apparatus capable of inducing various loads for evaluation of dynamic belting properties.
Edge wear
Damage to the edge of a belt by abrasion.
Effective tension
Difference between the tight side and the slack side tension at the derive pulley providing the necessary pull to move the load.
Elastic limit
The limiting extent to which a material may be deformed and yet return to approximately its original shape after removal of the deforming force.
Elasticity
The property of an article which tends to return it to its original shape after deformation.
Elastomer
An elastic rubber - like substance, such as natural or synthetic rubber.
Elastomer properties
The chemical and physical properties of an elastomer.
Elevator belt
A belt that raises material vertically in buckets attached to the belt.
Elongation
Increase in length expressed numerically as a fraction or percentage of initial length.
Endless belt
A belt made endless without a joint.
Exposed fabric
An area of a belt where the fabric reinforcement shows due to lack of cover.
Fabric
A planar structure produced by no woven or interwoven yarns, fibers, or filaments.
Fabric count
The number of warp ends per inch and the number to filling picks per inch.
Fabric rating
The maximum tension per ply of fabric a belt should be operated under ideal conditions.
Fatigue
The weakening or deterioration of a material caused by a repetition of stress or strain.
FDA
The governmental organization known as the Food and Drug Administration.
Feeder belt
A belt that discharges material onto another conveyor belt.
Finger splice
Belt ends cut into mating fingers.
Fire resistant
Retards the burning action of fire or flame.
Flame performance
The manner in which belting after being ignited will burn and /or self extinguish.
Flame retardance
Intensity of flame diminished by fire retardant ingredient (s) in the plastic compound.
Flame test
A men’s, under specific condition, for establishing the flame performance of a belt. This will not indicate the performance of the belt in any fire in which the belt may be involved.
Flat belt
(1) A belt the cross section do which is in the general form of a rectangle ; (2) A belt which operates on a smooth flat bed or straight idlers or rollers .
Flexibility
The ability to be bent repeatedly without cracking.
Folded - edge
(1) A belt construction wherein the inner carcass is enclosed in an envelope ply or plies. (2) An edge where an outer covering has been wrapped around a carcass and folded over the edge so that the carcass is closed on the edges.
Friction
(1) The resistance to motion of a belt due to for one complete cycle of a conveyor belt.
Gouging
The effect of sharp heavy material falling onto a conveyor belt cover to loosen or tear out poeces of the cover.
Gravity takes - up
A mechanical system that adjusts for the stretch or shrinking of a conveyor belt automatically by a weighted pulley in the system.
Grooved lagging
Lagging with round or angular grooves to minimize material buildup on the pulley.
Hardening
An increase in resistance to indentation.
Head End
Discharge end of a conveyor.
Head pulley
The delivery end of a conveyor belt.
Head - tail drive
A belt driving system using one or more powered pulleys at or near both the head and tail pulleys with each pulley independently driven.
Heavy weight belt
A belt with a rated maximum working tension equal to or greater than 160 pounds per inch width, when operating under ideal conditions.
Horsepower
A unit of power equal to 33,000 foot - pounds per minute (746 watts).
Hot air cure
Vulcanization by using heated air, with or without pressure.
Idler
(1) A no powered pulley around which a belt travels (2) a no powered roll or rolls supporting a belt.
Idler stand
The mechanical system that supports an idler pulley.
Impact
The single instantaneous storks or contact of a moving body with another either moving or at rest, such as s large lump lf material dropping on a conveyor belt.
Impact Idler
An idler designed to absorb the impact of material as it is fed onto the conveyor belt.
Impact energy
The effective combination to force (weight of the body and height) when one body falls on another.
Impact force
The energy power of impact.
Impact idler
A belt idler having a resilient roll conveying , resilient molded elastomer rings , pneumatic tires , springs or other means of absorbing impact energy at or close to the place where material contacts the belt .
Impact rating
The maximum rating of a belt construction based on the fabric, impact rolls, design of loading. Size of material falling on the belt, relative speed of the material and the belt, etc. to withstand the energy of impact loading.
Impact resistance
The relative ability of a conveyor belt assembly to absorb impact loading without damage to the belt.
Incline Conveyor
A conveyor carrying material on an uphill slope.
Interwove
A type of belt construction similar to that of a said woven belt, with plies "interwoven”.
Joint
The area where two ends of a belt are fastened together, either by heat and pressure or mechanical means. See also splice.
Lagged pulley
A pulley having its surface covered with lagging.
Lagging
A smooth or embossed covering on a pulley to increase friction between the belt and the pulley.
Lateral misalignment
Offset of pulleys, idlers, or structure from a design longitudinal reference line.
Modulus
Refers to one of several measurements of stiffness or resistance to deformation.
PIW
Per Inch of width.
RMA
Rubber Manufacturer's Association, who established specifications for conveyor belt grades several decades ago. Though many of the early members of that association are no longer manufacturing belting, those standards have been passed along with suitable changes to accommodate more "modern" raw materials presently used in belt work.
Saddle
An additional short length of belting added to an existing belt for repair.
Snubbed Pulley
A pulley adjacent to a drive pulley that increases the arc of contact on the drive pulley to increase the effectiveness of the drive.
Tail End
End of conveyor opposite the direction of travel (flow).
Tail Pulley
The belt pulley near the loading end of the conveyor system.
Take-Up
Device used to apply tension to the conveyor belt.
Tension Rating
Maximum safe working tension recommended by the manufacturer.
Thermoplastic
Capable of being repeatedly softened by heating and hardened by cooling and in the softened state can be shaped by flow.
Training
Referring to training a conveyor belt, the belt should ride on all idlers without skewing, accomplished by proper structural alignment and by adjusting toughing and return idlers.
Trough ability
The property of a belt that permits it to conform to the contour of toughing idlers.
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