Uzo nnwale maka Usoro Ngwa mkpuchi ntụ ntụ

Uzo esi anwale maka Mkpuchi mkpuchi

Emebere usoro ule maka ebumnuche abụọ: 1. ntụkwasị obi arụmọrụ; 2. njikwa mma

(1) GLOSS ule (ASTM D523)

Nwalee oghere dị larịị kpuchiri ekpuchi ya na onye ọrụ ubi 60 ogo mita. Mkpuchi agaghị adịgasị iche + ma ọ bụ - 5% sitere na akwụkwọ data achọrọ na ihe ọ bụla ewepụtara.

(2) Nnwale na-ehulata (ASTM D522)

Mkpuchi na .036 inch oké phosphated ígwè panel ga-nagide 180 degrees ehulata n'elu 1/4" mandrel. Enweghị mkparị ma ọ bụ mfu nke nrapado na imecha na mgbanaka enwere ike iwepụ ya na teepu 3M Y-9239.

(3) Nnwale ike ike (ASTM D3363)

A na-eji pensụl osisi Faber Castell mee ihe siri ike nke 1,2,3,4,. Mkpuchi agaghị egosi akara ọ bụla sitere na pensụl 2H.

 (4) CROSS HACHCH ADHESION TEST (ASTM D3359)

Edemede paralahịrị lel site na mkpuchi ka ọ bụrụ mkpụrụ, 1/4 ″ dị iche karịa otu inch. Detuo otu patị ọzọrallel ahịrị 1/4 ″ dị iche yana perpendicular na nke mbụ. Tinye teepu ọ bụla nnyapade wee wepụ nwayọọ nwayọọ. Nsonaazụ ekwesịghị ịbụ ibuli ntụ ntụ gwọrọ n'etiti ahịrị ndị ode akwụkwọ.

(5) Nnwale Nguzogide kemịkal (ASTM D1308)

Tinye ihe dị ka 10 tụlee nke ihe mgbaze ule, nke nwere 95% toluene dị arọ na 5% site na ịdị arọ Methal Ethyl Keytone n'elu mkpuchi ahụ. Hapụ ka ọ kwụrụ maka sekọnd iri atọ. Jiri akwa dị nro hichapụ ya. Mkpuchi agaghị egosi ihe karịrị ntakịrị akara okirikiri.

(6) Nnwale mmetụta (ASTM D2794)

Mkpuchi na .036 inch oké phosphated ígwè panel ga-anagide mmetụta na 1/2" Ugbo mmetụta ule bọọlụ na 26 inch pound ozugbo na tụgharịa. Enweghị ịta nri ma ọ bụ mfu nke adhesion. Agaghị enwe ike iwepụ ihe mmecha na mpaghara mmetụta ya na teepu 3M Y-9239.

(7) Nnwale ịgbasa nnu nnu (ASTM B117)

Jiri ngwọta nnu 5% na 92-97 degrees F n'ime ụlọ mkpuchi ihu igwe mechiri emechi. Detuo X na igwe nchara zinc phosphated test panel ka ọ bụrụ ọla efu. Nyochaa kwa awa 24 ọ bụla. Ngwucha ule na ngụkọta awa ka 1/4 ″ creepage si na mpaghara edere. Creepage agaghị agafe 1/4 ″ n'akụkụ ọ bụla site na ahịrị ode akwụkwọ mgbe ekpughere awa 500 gasịrị.

UZỌ anwale maka mkpuchi ntụ ntụ