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플라스틱
적용 > 광학 측정 기술 > 플라스틱

생산 현장에서 바로 정정합니다

 생산이나 포장 중 모재나 PET 병들의 벽 두께, 포일 두께를 고도로 정밀하게 규정해야 하든 그렇지 않든 – CHRocodile-Sensor들을 쓰면 언제나 안전합니다. 무접촉 급속 측정으로 제조 공정 상의 변화를 확인합니다. 높은 측정 속도 덕분에 생산 중에 조절하며 개입할 수 있습니다. 당사 센서들은 유명 제조 업체들의 분무 주조 부품 높낮이 측정, 블리스터(PET, PP, EVOH) 벽 강도 측정에서 성능을 입증했습니다.

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CHRocodile K
Non-destructive measuring of plastic welded seams

Welded seams in plastics must often undergo non-destructive tests. This may be the case in medical applications, such as multi-chamber pouches. Also the connection between the pouch and hoses and connectors can also be joined with welded seams. Quality and reproducibility can also be tested by the thickness of the welded seam.

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CHRocodile LR
Measuring air gaps and film thicknesses in production processes of technical polymers and PET

Technical polymers, such as Cyclo-Olefin-Copolymers (COC), are amorphous and therefore transparent, unlike partially crystalline polyolefins. As a result, they are particularly suitable for unilateral, contact-free thickness measurements by optical sensors. Low twin refraction properties are important for optical applications. Outstanding biocompatibility and extremely low water absorption/ water vapour permeability must be emphasised in the field of medicine and diagnostics. COC products are optical window films for flat screens as well as syringes, microtitre plates, cuvettes and flasks. In production, Precitec sensors measure the thickness of air gaps and layer thicknesses.

CHRocodile sensors are also used in coating processes by polymethyl methacrylate (PMMA, acrylic glass or Plexiglas). They can also be used in inline processes (roll to roll) to measure layer thicknesses (in the low micron range) on Polyethylenterephthalat (PET), unlike sensors with a low sampling frequency. 

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CHRocodile S / SE
Measuring the thickness of plastics or plastic coatings

Polycarbonates are coated to increase scratch resistance or UV resistance, for example. The coating and the material thickness can be measured by optical sensors without the sensors coming into contact with the items. Polycarbonate, a transparent plastic, is often used as an alternative to glass. Compared with brittle glass, polycarbonate is lighter and considerably more shock-resistant. Its negative properties, such as scratch-resistance or UV resistance can be reduced by coatings. For example, polyurethane acrylate layers of a few microns can be measured with the CHRocodile SE sensor.

The same also applies to EPDM. This is ethylene proplylene diene monomer rubber (cellular rubber). It is used for various seals, such as O rings for slide ring seals and for hoses, for steam or hot water, because it is highly flexible and has good chemical resistance. A confocal sensor can detect undesirable corrugation in the material. 

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CHRocodile LR
Micro lens arrays

Chromatic confocal sensors can measure the shape of micro lenses and thus help to detect surface defects. Optimised shapes are important for a distortion-free image and optimum light output. Lens arrays of cylindrical, aspherical or spherical lenses are made of highly refractive and highly transparent glass. Contact-free measuring systems using chromatic confocal sensors prevent damage to the lenses from tactile measuring sensors and enable a three dimensional surface image of the lens system. The curvature radius of the lenses can be determined. The sensors create highly significant 3D data. 

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CHRocodile 2 IT TW
Measuring layer thicknesses of food packaging films

Multiple layers can be measured by the CHRocodile IT-TW using interferometric thickness measurements with infrared light. This is the case, for example, with multi-layer food packaging films where the adhesive layer thickness is important. Places without adhesive can be detected in this way. In this way the thickness of films that are not transparent to white light can be measured. Even the individual layer thicknesses of multi-layer films can be measured if the refractive index of the materials is different.

CHRocodile K
Inline wall thickness measurement of artificial casings

The product to be measured is an artificial casing made of collagen. This is used as a natural skin for sausages. The material has a rough surface. This is made from a by-product of leather production and is known as a hide fibre sleeve. Here the ability of the measuring system to transfer continuous measurements to the measuring head quickly and therefore to measure strongly vibrating films is impressive. Without this measuring option the measurements must be taken using a much more inaccurate tactile process by determining the weight. This is much slower. The CHRocodile K sensor supplies high quality thickness values with this semi-transparent film that appears uneven and full of fissures according to the measurement results. 

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CHRocodile K
Measuring the wall thickness of plastic moulded parts

Plastic moulded parts, such as cuvettes or pipettes, can be measured without contact with an interferometric measuring system. Wall thicknesses can be determined in this case directly with the optical probe and a spacer on their own if no measuring machine is available.

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CHRocodile S / SE
분무 주조 부품 높낮이 측정

분무 주조 부품들은 이제 금형, 색상 또는 표면 성질이든 다양한 성질을 갖고 있을 수 있습니다. 높낮이 측정 시스템은 의미 있는 값을 제시하려면 이러한 테두리 조건과 화합해야 합니다. 높은 출구가 있는 시각 측정 헤드들과 연계된 센서 CHRocodile SE는 이러한 전제 조건을 완벽하게 충족시킵니다. 본 센서는 모든 표면에서 사용 가능하고, 거의 모든 부품 구조에 적합하고, 주변 영향에 둔감합니다. 측정 정확성과 측면 해상도는 µm 범위에 있고, 축 해상도는 µm 미만 범위에 있습니다. 이밖에 CHRocodile SE는 수 kHz의 인상적 측정률을 제공합니다! 허나 이러한 설득력 있는 값들도 간편한 공정 환경 편입 가능성이 없다면 무슨 소용이 있겠습니까? 이 문제에 대해서도 준비가 되어 있습니다. 외부 하드웨어와의 동기화는 현재의 산업 표준에 따라 다수의 인터페이스를 통해 보장되기 때문입니다.

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CHRocodile K
포일의 두께 측정

얇은 투명 및 불투명 한 필름은 전형적으로 요구되는 조건 하에서, 높은 속도로 생산된다. 이 때문에,보다 적합한 센서는 생산 도중에 필름 두께를 결정하는데 사용되어야한다.측정 기법은 온도, 습도, 또는 필름의 진동과 같은 환경 변수에 의해 영향을 받 아서는 안된다. interferometric 측정 방식의 CHRocodile K는 완벽하게 이러한 조건을 충족시킨다. 즉 가장 높은 정밀도와 속도를 결합하여 사용할 수 있다. 이것은 필름 제조의 공정에서 측정으로 인한 시간 지연을 최소화 할 수 있다.

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