Bending Coating Tester Cylindrical NOVOTEST BEND IR

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Bending Coating Tester NOVOTEST BEND IR adalah alat yang memungkinkan pengukuran elastisitas dan kekuatan pelapisan melalui pembengkokan plat logam yang telah dilapisi sekitar seperangkat batang silinder dengan berbagai diameter mulai dari 2 mm hingga 32 mm (diameter lainnya dapat diminta sesuai kebutuhan).

Alat ini mematuhi standar ISO 1519-73 dan digunakan untuk pelapisan cat serta menentukan metode untuk menentukan elastisitas film selama pembengkokan. Metode ini melibatkan penentuan diameter minimum batang logam silinder, setelah dibengkokkan di sekitarnya, pelat logam berlapis cat, tidak mengalami kerusakan mekanis atau delaminasi film cat berlapis tunggal atau berlapis ganda (ISO 1519, DIN 53 152).

Elastisitas diuji dengan membengkokkan plat timah berlapis cat di sekitar batang silinder dengan diameter mulai dari 2 hingga 32 mm. Nilai elastisitas pelapisan dengan ketebalan film tertentu adalah diameter batang terkecil di mana retakan tidak terjadi.

Bending Coating Tester NOVOTEST BEND IR adalah alat yang terdiri dari bingkai dengan klip yang sudah terpasang untuk sampel yang diuji dan mekanisme khusus untuk membengkokkan plat di sekitar batang dengan diameter yang berbeda. Sampel yang sudah disiapkan ditempatkan di antara klip dan dipasang dengan memutar pegangan. Setelah itu, tekan objek yang diuji ke bagian atas batang dengan memutar pegangan dan membengkokkan plat di sekitar batang.

Keuntungan:

NOVOTEST BEND IR dibandingkan dengan pengujian lentur pelapisan lainnya, seperti NOVOTEST BEND-ShG, memungkinkan pembengkokan dengan celah yang jelas dan terdefinisi sebelumnya (atau tanpa celah) di sekitar batang tanpa deviasi dari posisi vertikal dan meminimalkan pengaruh faktor manusia terhadap akurasi pengujian.

Spesifikasi

Measurement rangefrom 2 mm to 32 mm (others – on request)
The length of the test bars, no more80 mm
Diameters of cylindrical rods2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 15 mm, 16 mm, 20 mm … 32 mm
The material of rodssteel

 

Application of the device

It is recommend to use painted tin plate.

Tin plate has to have a smooth surface without any voids, rusty spots, fibrations and impurity.

The test samples are rectangular plate with length 100 – 200 mm and width 20 – 50 mm, which are made of black polished tin metal sheet with thickness 0,25 – 0,32 mm or aluminum sheets and strips with  thickness 0.25 – 0.30 mm which coated with single-layer or multi-layer paint film on them.

 

The method of applying the paint on the material, thickness of film, number of layers, conditions and time of drying and exposure of the film before the test, must be specified in the specifications and technical documentation of the tested material.

The samples before testing are to be withstanded at the conditions which are specified in the specifications and technical documentation of the painting material.

The time and degree of drying is determined according to ISO 1519, DIN 53 152.

The thickness value of tested paint film which applied to the plate can be measured with coating thickness gauges, for example Coating Thickness Gauge NOVOTEST TP-1M.

 

The tin plate is to be secured in clamps on the rod with maximum diameter (20 mm), coated side to outside, and pressing it tightly to the rod, smoothly bend it within 1 – 2 s for 180 ° around the rod.

After that coating layer at the bend-place is to be analysed using magnifying glass with 4-fold zoom for cracks and delamination.

If defects are absent, user has to repeat bending of the plate, but each time at a different location, successively from larger to smaller diameter of the rod, until anу mentioned above defects are spotted.

If the specifications and technical documentation to the painting material stipulated the value of elasticity (rod diameter), the test is carried out using only a rod of this diameter.

The result should be the minimum diameter of the rod in millimeters, when the tested sample after bending haven’t any destruction on paint film.

Evaluation elasticity value of the film through the bending on a metal rod makes after three tests of plates on the same rod.

Opsional Produk

We can produce the other diameters and length of test rods according to user requirements.

Standard Produk

  • Instrument
  • Operating manual
  • Package
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