I-analsis yokusabalalisa usayizi wezinhlayiya zokumbozwa kwempushana

I-analsis yokusabalalisa usayizi we-particle ye i-powder coating

Imiphumela yokuhlolwa kosayizi wezinhlayiyana ze-laser:

Isilinganiso sosayizi wezinhlayiyana (ububanzi obumaphakathi), umngcele wosayizi wezinhlayiyana kanye ukusatshalaliswa kosayizi wezinhlayiyana lokuhlakazeka.

1. Usayizi omaphakathi wesampula ungaphansi futhi mkhulu kuno-50% wezinhlayiya.
2. Usayizi wezinhlayiyana zomngcele: eduze komqondo ojwayelekile kuya kusayizi wezinhlayiyana eziphezulu kanye nobuncane. Kodwa-ke, ubukhulu kanye nobuncane besayizi yezinhlayiyana ukuchaza imikhawulo engaphezulu nephansi yesampula kasayizi wezinhlayiyana ezingezona ezesayensi, yisakhi sofuzo.rally ubukhulu bezinhlayiyana zomngcele, njengokuthi (D10, D90) = (8,60), imele izinhlayiya ezingaphansi kwama-microns angu-8 ububanzi ezibalelwa ku-10% no-90%, inani lezinhlayiya ezincane kuno-60 microns ububanzi.
3. Ukuhlakazwa kokusatshalaliswa kosayizi wezinhlayiyana = (D90-D10) / D50, ukuhlakazwa, ukusakazeka kosayizi wezinhlayiyana kuncane kakhulu, kukhulu kakhulu futhi kuncane kakhulu inani lezinhlayiyana kusayizi wezinhlayiyana ezincane kuphakama ukuhlushwa.

Ubudlelwano phakathi kosayizi wezinhlayiyana nekhwalithi yempushana:

Ukusabalalisa usayizi wezinhlayiya kanye nokuthungwa kwefilimu, ukushelela, ukucwebezela, umphumela wezinhlayiya, imiphumela ebukhoma, i-powder fluidization, ukuzinza kwesitoreji kanye nezinga lokubuyisela impushana kuhlobene eduze.

1. Ukubukeka, izinga, kanye nezinhlayiyana: Kufuzoral, usayizi wezinhlayiya zempushana ezincane, ngcono ukushelela ekuphulukiseni upende; ukujiya okufanayo enamathela, usayizi kuyizinhlayiyana encane powder akulula ukuvela kuyizinhlayiyana; ukubukeka kwe-coating kuba bushelelezi, bushelelezi.
2. imiphumela ephilayo kanye nesivuno sikafulawa: Ikhokhiswa ukuthuthukisa izinhlayiya zempushana, ukumbozwa kwempushana ngesilinganiso kuzokwenyuka. Amandla amakhulu e-adsorption we-electrostatic spraying electrostatic powder, isivuno sefulawa sincike enanini lezinhlayiya zempushana eshajiwe. Impushana enamandla kanye nosayizi wezinhlayiyana eziyimpushana ilingana nesikwele. Khulisa usayizi wezinhlayiyana, impushana ngokusetshenziswa okuphezulu, izinga lempushana. Usayizi wezinhlayiyana zempushana mkhulu kakhulu, usayizi wezinhlayiyana mkhulu kakhulu, amandla adonsela phansi empushana enkulu phezu kwe-aerodynamic kanye ne-electrostatic powder coating phakathi nendiza, kade ewa ngenxa yamandla adonsela phansi ayifinyeleli phezulu, kodwa ukwenza izinga lempushana. I-Powder inhle kakhulu ekhokhiswayo ephansi yokufaka isicelo sokusebenza kahle izokwehla, i-ultra-fine powder (usayizi wezinhlayiyana <10μm) ngokuyisisekelo ayiphili ngesikhathi esifanayo i-powder ihle kakhulu futhi yandisa ubunzima bokukhiqiza i-powder.
3. Umphumela wokugeleza kwempushana: Impushana incane kakhulu, impushana encane kakhulu izothwala ibutho lempushana edidiyelwe, ukusakaza ngeke kusabalale. Uma ufuthwe ku-workpiece ukuze wenze ukuchachamba nokuncane, kuthinta ukubukeka kwe-coating. Lapho impushana iyimpushana emahhadla kakhulu emgqonyeni oyimpushana akulula ukugcwala kwamanzi.
4. Ukuzinza kwesitoreji: Ukuzinza kubhekisela ku-powder enamathela ngaphansi kwezimo ezithile, ukugcina usayizi wezinhlayiyana ze-powder, ukwakheka kanye nekhono lokuqina, okungukuthi, kungakhathaliseki ukuthi i-powder in the storage noma ukusetshenziswa kuzomunca umswakama, ukuvela kwezimo ezifana ne-powder caking. Ngokuvamile impushana emihle kakhulu, ikakhulukazi i-ultrafine powder okuqukethwe okungaphansi kuka-10μm impushana eningi kakhulu okulula ukumunca umswakama, amaqembu amafindo, ukuncipha kokuqina, izoxhuma isibhamu, i-spit powder ibe yimbi.
5. Izinga lokutakula:Imboni yokukhiqiza i-powder enamathelayo kanye nesitshalo sokupenda se-powder kunendaba yokugaywa kabusha kwe-powder enamathela, ngokuvamile, usayizi wezinhlayiyana ze-powder <10μm izinga lokubuyiswa kwe-powder elicolekileyo liphansi, lapho usayizi wezinhlayiyana zempushana> 10μm pm ukubuyiswa kwe-powder coating. izinga likhuphuka ngokushesha, kanye nempushana Izinga lokubuyisela lenyuka njengoba usayizi wezinhlayiyana ukhula.

I-Powder enamathela ukwenza ukubaluleka kokutholwa kosayizi wezinhlayiyana kuyifomula efanayo, isiqondiso sokukhiqizwa kwempushana, ukusebenza kwe-powder ukuze kuzuzwe ukusebenza kahle okuphezulu.