ASTM D7803-Standard don Shirya HDG karfe don rufin foda

ASTM D7803

Gada misali ɗaya ne na ayyukan gine-gine waɗanda galibi ana yin su daga ƙarfe mai zafi mai zafi. Yadda ake sutura wannan karfe ba tare da gazawar mannewa na tsarin foda an bayyana shi a cikin sabon ma'aunin ASTM.

Sabuwar ma'auni, ASTM D7803, "Tsarin Shirye-shiryen Zinc (Hot-Dip Galvanized) Rufin ƙarfe da Ƙarfe Samfurin da Hardware saman don Abincin Foda” yana rufe shirye-shiryen ƙasa da pretreatment na ƙarfe da samfuran ƙarfe da kayan masarufi waɗanda ba a fentin su ko foda a baya ba (Practice D6386). Kila an yi maganin abubuwan da aka yi da galvanized tare da kayan kariya don hana faruwar tabon ajiyar jika. Wannan al'adar ba ta shafi samfuran galvanized karfe ba ko ga murfin nada ko ci gaba da tsarin abin nadi.

"ASTM D7803 ya bayyana matakan da za a bi don yin riko da foda a kan galvanized karfe don haka babu gazawar adhesion na tsarin foda," in ji Thomas Langill, darektan fasaha, Ƙungiyar Galvanizers ta Amirka, da kuma memba na ASTM. "Akwai ƙara sha'awa a cikin foda shafi tun da ba shi da wani maras tabbas Organic mahadi a kan lalata kariya, kamar galvanized shafi domin. launi da kuma bayyanar.

Sabbin ma'auni ya haɓaka ta Subcommittee D01.46 akan Rufin Kariyar Masana'antu, wani ɓangare na ASTM International Committee D01 akan Fenti da Rubutu masu alaƙa, Kayayyaki da Aikace-aikace.