Gịnị bụ induction hardening okpomọkụ ọgwụgwọ?

1. Ụkpụrụ ndị bụ isi

Ọkụ na-eme ka ike gwụ bụ iji ụkpụrụ nke induction electromagnetic na-etinye workpiece na induction eriri igwe mere nke ọla kọpa tube. Mgbe a na-etinye ihe ọzọ ugbu a na eriri induction, oghere ndọta ọzọ nwere otu ugboro dị ugbu a ga-eme n’ime na gburugburu ya. Ọ bụrụ na etinyere workpiece N’ime oghere ndọta, a na-emepụta ihe na-eme ugbu a n’ime workpiece (eduzi), na workpiece na-ekpo ọkụ n’ihi nguzogide. N’ihi “mmetụta akpụkpọ ahụ” nke ọzọ ugbu a, njupụta dị ugbu a n’akụkụ elu nke workpiece bụ nke kasị ukwuu, ebe ugbu a na isi nke workpiece fọrọ nke nta ka ọ bụrụ efu. Okpomọkụ dị n’elu nke workpiece nwere ike iru 800-1000 Celsius n’ime sekọnd ole na ole, ebe isi ka dị nso na ụlọ okpomọkụ. Mgbe elu okpomọkụ adahade na quenching okpomọkụ, fesa jụrụ ozugbo imenyụ elu nke workpiece.

2. Atụmatụ nke induction kpo oku

A. N’ihi na induction kpo oku bụ nnọọ ngwa ngwa na ogo overheating bụ nnukwu, oké egwu n’ókè nke ígwè na-abawanye, otú induction quenching okpomọkụ (workpiece elu okpomọkụ) dị elu karịa general quenching okpomọkụ.

B. N’ihi ikpo ọkụ induction ngwa ngwa, kristal austenite adịghị mfe itolite. Mgbe emenyụchara, a na-enweta ezigbo ihe owuwu cryptocrystalline martensite, nke na-eme ka ịdị ike nke workpiece 2-3HRC dị elu karịa nke ịkwụsị nkịtị, a na-emeziwanye nguzogide eyi.

C. Mgbe elu quenching, olu nke martensite na obi tara mmiri oyi akwa bụ ibu karịa mbụ Ọdịdị, n’ihi ya, e nwere nnukwu mmapụta nrụgide na elu oyi akwa, nke nwere ike budata mma ekwe iguzogide na ike ọgwụgwụ ike nke akụkụ. Obere akụkụ nwere ike ịbawanye site na 2-3 ugboro, nnukwu akụkụ nwere ike ịbawanye site na 20% -30%.

D. N’ihi na induction kpo oku ọsọ bụ ngwa ngwa na oge dị mkpirikpi, ọ dịghị oxidation ma ọ bụ decarburization mgbe quenching, na deformation nke workpiece bụkwa nnọọ obere. Mgbe ịmalite ịmalite ike, iji belata nrụgide na-ebelata ma belata nhịkọ, a chọrọ obere okpomọkụ na 170-200 degrees Celsius. Nnukwu workpieces nwekwara ike ịbụ onwe-ewe iwe iji mpụta okpomọkụ nke quenched workpiece.