Exhaust pipe for stainless steel flue with enhanced heat resistance and its manufacturing method

• Main Author: BAE, SANG JIN
• Format: Patent
• Language: English; Korean
• Published: 16.04.2021
• Subjects: ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL; BLASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMBUSTION APPARATUS; COMBUSTION PROCESSES; DIFFUSION TREATMENT OF METALLIC MATERIAL; FLUES; GRINDING; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; PERFORMING OPERATIONS; POLISHING; REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; WEAPONS

The present invention relates to a method for manufacturing an exhaust pipe of a stainless flue duct with reinforced heat resistance. More specifically, the present invention comprises a step of heating a ceramic coating layer by three steps to prevent corrosion of a stainless chimney. The exhaust pipe manufactured by the manufacturing method of the present invention removes corrosion caused by acid such as sulfuric acid, sulfurous acid, and hydrochloric acid generated by condensed water or rainwater and is not casted off or cracked at high temperature to be semi-permanently used. 본 발명은 내열성이 강화된 스텐레스 연도용의 배기관을 제조하는 방법에 관한 것으로, 구체적으로 스텐레스 굴뚝의 부식을 방지하기 위해 세라믹 도막층을 3차에 걸쳐 가열하는 단계를 포함한다. 본 발명의 제조방법에 의해 제조된 배기관은 결로수나 빗물에 의해 생성되는 황산, 아황산 및 염산 등의 산에 의한 부식이 발생하지 않고, 고온에서도 탈각되거나 균열이 일어나지 않아 반 영구적으로 사용 가능한 것을 특징으로 한다.