Panliten Aplikasi Teknologi Laser Pembersih Permukaan Logam

1. Pembersih laser ora mung ngilangi rereget nanging uga nambah resistensi

Laser reresik bisa ngatasi kekurangan teknologi pembersihan tradisional, kayata wektu, tenaga kerja, polusi lingkungan, lan liya-liyane, lan nduweni peran penting kanggo mbusak kotoran permukaan logam. Kajaba iku, paramèter pembersih laser bisa dikendhalèkaké luwih apik, supaya permukaan logam dibersih sacara kimia ditanggulangi lan mbentuk lapisan protèktif kanthi ketebalan sawetara mikrofon kanggo nyegah karat logam luwih cepet. Decontaminasi nggunakake teknologi pembersihan laser bisa nggawe resistensi korosi piranti logam Nambah 3 nganti 4 kaping.

2. Pilihan jinis laser lan panjang gelombang duwe pengaruh penting kanggo efek reresik

As shown in the figure, the absorption coefficients of various metals change with wavelength. At λ=916nm-1200nm, most metals have higher absorption coefficients in this band, and organic matter has relatively strong laser absorption in this band. Because of this, in terms of absorption rate, combining the comparative advantages of various aspects, fiber lasers have demonstrated unique advantages in all aspects. The organic pollution layer absorbs the laser strongly, and the temperature of the organic pollution layer quickly rises to the evaporation point to vaporize, thereby achieving the purpose of removing the pollution layer without damaging the substrate. Then determine the energy threshold of laser cleaning, the energy threshold of laser cleaning will determine the effect of laser cleaning. Selecting the appropriate laser cleaning energy threshold requires comprehensive consideration of the material's performance, microstructure, morphological defects, and the effects of laser wavelength and pulse width.

Aplikasi-Research-on-Laser-Cleaning-Technology-of-Metal-Surface

3. Sudut insiden laser sing cocog ndadekake efek pembersihan luwih efisien

Nalika laser kedadeyan ing sudut obong tartamtu, laser kasebut langsung radiasi ing partikel sing dipatuhi, nyebabake stres thermoelastic sing luwih dhuwur. Dibandhingake karo kedadeyan normal, polutan luwih gampang diilangi. Kajaba iku, panliten nemokake yen nambah sudut miring, area radiasi laser luwih gedhe. Yen sudut miring 20 derajat, wilayah sing bakal di resiki udakara 10 kaping kedadeyan kedadeyan normal, sing efektif ningkatake efisiensi pembersihan laser.

4. Jumlah fokus sing bener nambah efek reresik laser

Mekanisme reresik bakal beda kanggo jumlah defocus sing beda. Pembersihan yaiku mekanisme retakan bahan lumahing nalika fokus, lan yen jumlah fokus bakal gedhe, penghapusan lapisan cat diganti saka fragmentasi menyang vaporisasi.

Kanggo ngoptimalake efek pembersihan laser ing permukaan logam, perlu kanggo nganggep komprehensif metode pembersihan laser, model reresik, jinis laser, gelombang laser, kepadatan energi, kekuwatan, frekuensi pulsa, wektu pulsa, lan sudut insiden laser. Laser pulsed bisa ngresiki karat saka lumahing baja karbon. Nalika gelombang dawane 1064nm, kekuwatan laser yaiku 500W, frekuensi pulsa 10kHz, jembarake pulsa yaiku 120ns, kacepetan reresik 60mm / s, lan tingkat puteran 5%. Efek korosi paling apik, lan anané oksigene ora ditemokake ing pembersihan laser saka permukaan rusty, wilayah mikro, garis lan poin. Mung panelitian sistem proses bisa mbentuk sistem reresik laser sing efisien.


Wektu kirim: Jun-28-2020
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