Ọgwụgwọ Okpomọkụ Maka saw Agụba oghere

Ọtụtụ eriri okirikiri dị mkpa ka a na-eme usoro ọgwụgwọ okpomọkụ nke na-agbanwe ihe anụ ahụ nke ígwè ahụ iji mee ka ihe ahụ sie ike ma mee ka ihe ahụ nwee ike iguzogide ike ndị a na-emepụta n'oge ịkpụ. A na-ekpo ọkụ ka ihe dị n'etiti 860 Celsius na 1100 Celsius C, dabere n'ụdị ihe ahụ, wee mee ka ọ dị jụụ ngwa ngwa (menyụọ). A maara usoro a dị ka hardening. Mgbe emechara, saws kwesịrị iwe ọkụ na ngwugwu iji belata ike ma mee ka ike nke agụba dịkwuo elu. N'ebe a, a na-akụchi agụba n'ime mkpọ wee kpoo ọkụ nwayọ ruo n'etiti 350 Celsius na 560 Celsius, dabere na ihe onwunwe, wee mee ka ọ dị jụụ nwayọọ nwayọọ ruo okpomọkụ.