열처리가 냉간가공한 stainless steel wire의 복원양상에 미치는 영향

• 영문명: EFFECTS OF LOW-TEMPERATURE HEAT TREATMENT ON ELASTIC MEMORY PROCESS OF COLD WORKED STAINLESS STEEL WIRE
• 발행기관: 대한치과교정학회
• 저자명: 오정세(Jeung-Sei Oh) 박수병(Soo-Byung Park) 손우성(Woo-Sung Son)
• 간행물 정보: 『The Korean Journal of Orthodontics』제22권 제3호, 647~656쪽, 전체 10쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1992.09.30

영문 초록

The purpose of this study was to evaluate the elastic memory process in cold worked stainless steel wire and the effect of heat treatment on it. 0.018 inch round and 0.019 X 0.025 inch rectangular wire (ORMCO stainless wire) were used in this study. Each wire type had 4 groups: non-heat treatment group, furnace heat treatment group, electric current heat treatment group, and bending after heat treatment group. Each group was consisted of 10 specimens. With the Jig, each wire was bent into v-shape uniformly, and width of two free ends of each v-shaped wire was measured by caliper (to the point of 0.1mm correctly) at time interval of off-jig, after heat treatment, 1, 2, 3. 4 hours, I, 2, 3,4, 5, 6 days, 1, 2, 3, 4 weeks after. The results were as follows: 1. In non-heat treatment group and bending after heat treatment group, elastic memory process was occured 60% within 1 hour, and more than 90% within 1 week. 2. In furnace and electric current heat treatment group, almost all elastic memory process was occured during heat treatment, and then specimen was stabilized dimensionally. 3. Magnitude of deformation by elastic memory was greater in heat treatment group than non heat treatment group and bending after heat treatment group. 4. There was no remarkable difference in deformation pattern between 0.018 inch round wire and 0.019 x 0.025 inch rectangular wire.