The Strain viewer ( Ref.PSV-202) has been designed to observe and analyze the internal stress of preform and other plastic products .
Detecting object
1. Preform ( Color and colorless types )
2. Other transparent plastic products
Plastic molds , plastic bottle , cosmetic bottle , beverage bottle, plastic tray, plastic film ., etc
Specifications
Analyzer : diameter 100mm
Viewing field: 200mm*200mm
Measuring height :236mm
Overall size: 310*285*350mm
Voltage: 24VDC( with a AC/DC adaptor )
Light source: White fluorescent lamp
Weight:8KG
Measuring Principle
The internal stress plastic products has a birefringent characteristic. In other words, if there is stress inside of these types of products, light from he polarized lamp will be divided into different units, which produce optical interference phenomenon(ripple patterns) in turn.
Under white-light lamp, you can see aubergine ripples, which is caused by the presence of stress.
From the observation of colored patterns, you can see stress distribution directly, then evaluate and improve the annealing process.
The inspection of plastic molds is more complex as the colored patterns cased by stress is irregular. A similar situation may occur with glass products, which is called stress stretching. For example, a qualified mold will have a large amount of stress released by tension.
The role of full-wave plate :
The full-wave plate increases or decreases the full wavelength of a phase difference, thereby forming a colored pattern, which is easier to analyze.
Function 1.Observe stress distribution in transparent plastic, glass products and optical crystals 2.Measure retardation caused by internal stress in glass and optical crystals Detecting object 1. transparent glass products with complex construction. such as : penicillin bottle, ampoule , mobile phone cover, light tube, light bulb,solar glass ,automobile glass,sapphire, glass container , glass handicraft 2. transparent plastic samples plastic bottle , cosmetic bottle , beverage bottle, contact lenses, plastic tray plastic film 3. optical crystals such as quartz , SiC, calcium fluoride Detecting methods Sensitive Color Method and Senarmont Method Specification Model PSV-413 Size W291 D384 H388mm Measuring range 0-280nm Weight 11Kg Viewing field W200 D200mm Measure height Max259mm Light Source Warm white LED light 10W Power DC 12V(with a AC/ DC adapter) Others: 1.Polarizing light field intensity : 120cd/m2 (10W LED lamp) 2.Polarization degree of the polarizing material: 99% 3.Polarization field: 200*200mm 4.Instrument structure: a 1/4 wave plate in the analyzer and a full-wave plate in the polarizer (wavelength 565nm). Slow axis of the plate is at 90 to the polarization plane .5.A dial on the Analyzer is used to measure the rotating angle (range: 0-180 )
JHG design shelf glass with different style , functionality, durability ,and affordability ,to meet all clients inquiry . Glass shelves is necessary accent for the kitchen, bedroom, bathroom, furniture and home appliance in our life. All shelves including : Clear and white satin colors Polished and bevelled edges glass shelves Rectangular ,shape size and curved glass shelves Coloured glass with back painted Any sizes available Package : Wooden cases Carton with indicated logo Thermal plastic sealed package
The Polariscope ( Ref.PSV-202) has been designed to observe and analyze the internal stress of transparent glass and plastic products . Valued customers : Lock & Lock , Heraeus , Ferrotec Detecting object 1. transparent glass products with complex construction. such as : penicillin bottle, ampoule , mobile phone cover, lighting tube, solar glass ,automobile glass,sapphire, glass container , glass handicraft 2. transparent plastic samples plastic bottle , cosmetic bottle , beverage bottle, plastic tray, plastic film 3.Crystaline material Specifications Retardation of full-wave plate : 560nm Viewing field: 200mm*200mm Measuring height :236mm Overall size: 310*285*350mm Voltage: 24VDC( with a AC/DC adaptor ) Light source: White fluorescent lamp Weight:8KG
Glazing glass is a combination of two or more pieces of glass spaced apart with a spacer bar and hermetically sealed with a primary and secondary sealant to form a single unit with one or more air spaces between each other. Max size :3300*12000mm Main character : Energy saving , improving the thermal performance Sound insulated Security and comfort Component : 1.� Glass items:� consists of hard or soft low E glass ,reflective glass ,clear glass ,tinted glass, with types of flat tempered ,bent ,laminated processing ,according to the application 2.� Spacer bar :is the material used to separate the two glass lites in an IGU. It can be made by aluminum,stainless steel,hybrid ,plastic material . The spacer width usually from 6mm-18mm.
Measuring Principle The internal stress of glass and plastic products has a birefringent characteristic. In other words, if there is stress inside of these types of products, light from he polarized lamp will be divided into different units, which produce optical interference phenomenon(ripple patterns) in turn. Under white-light lamp, you can see aubergine ripples, which is caused by the presence of stress. From the observation of colored patterns, you can see stress distribution directly, then evaluate and improve the annealing process. The inspection of plastic molds is more complex as the colored patterns cased by stress is irregular. A similar situation may occur with glass products, which is called stress stretching. For example, a qualified mold will have a large amount of stress released by tension. The role of full-wave plate : When testing glass samples without the full-wave plate, usually only black or gray shadow patterns can be seen. The full-wave plate increases or decreases the full wavelength of a phase difference, thereby forming a colored pattern, which is easier to analyze.
Principle : Polarization interference Specifications : Viewing field: 200* 200 mm Overall size: 300*335*330 mm Main voltage:220 V AC Measuring space height : 234.5 mm Light source: LED ( White and Sodium light) Gross Weight : 10KG Packed in 1 carton : 45*45*32cm Application area This Polariscope is designed to observe and analyze the distribution of internal strain in transparent plastic preforms. It has been widely used in the quality control of various plastic rough processing products and finished bottles. Features 1.Defects invisible to the naked eyes such as crystallization or other common defects become visible ; 2.When the plastic preform is placed on the Polarizer at a 45 angle, the colored birefringent stripes at the edge of the preform can be observed; 3.When the plastic preform is placed on the polarizer at a 0 or 90 angle, black birefringence stripes in the central part of the preform will be displayed; 4. In addition to white light, Sodium light is also used to test colored preforms or finished bottles; 5. Besides , this Strain Viewer provides 12 kinds of defect analysis functions. 12 kinds of colored defect comparison pictures will be attached to instruct related improvements in preform production process.
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Capacity: 0.45L; Body: Borosilicate glass material, customized patterns and colors; Lid: ABS Plastic, PP Plastic, Stainless steel material (optional), twist type, dust and leakproof; Mouth: Wide, easy to pour water or ice cubes in; Handle: Portable and convenient; Color and Pattern: Optional or customized; Logo: Rang Dong; OEM: Accepted;
