Ukuvimbela i-welding kanye ne-deformation ye-grating yensimbi engagqwali

Ngokuthuthuka okuqhubekayo kwezimboni zikaphethiloli, amakhemikhali, ezemithi nezinye, siyanda isidingo semishini evikela ukugqwala. Ama-grating ensimbi amaningi asetshenziswa kakhulu emabhizinisini amakhemikhali, ikakhulukazi i-austenitic insimbi engagqwali, enokumelana nokugqwala okuhle nokuzinza kokushisa. Inomkhuba okhulayo wokufaka izicelo zezimboni unyaka nonyaka. Ngenxa yokuthi iqukethe i-nickel ephezulu futhi inesakhiwo se-austenite yesigaba esisodwa ekamelweni lokushisa, inokumelana nokugqwala okuphezulu, i-plasticity ephezulu kanye nokuqina ekushiseni okuphansi, izinga lokushisa lekamelo kanye nokushisa okuphezulu, kanye nokwakheka okuhle okubandayo nokushisela. I-304 insimbi engagqwali iyona esetshenziswa kakhulu ekukhiqizeni igridi yensimbi.

Izici ze-304 insimbi engagqwali
Izakhiwo zensimbi engagqwali engu-304 ziyi-thermal conductivity ephansi, cishe i-1/3 yensimbi ye-carbon, ukumelana ne-carbon steel izikhathi ezi-5, i-coefficient yokukhulisa umugqa cishe ngo-50% inkulu kune-carbon steel, kanye nokuminyana kukhulu kune-carbon steel. Izinduku zokushisela insimbi engagqwali ngokuvamile zihlukaniswa izigaba ezimbili: uhlobo lwe-titanium ye-calcium ene-asidi kanye nohlobo lwe-hydrogen oluphansi lwe-alkaline. Izinti zokushisela zensimbi engenasici ephansi ye-hydrogen zinezinga eliphezulu lokumelana nokuqhekeka okushisayo, kodwa ukwakheka kwazo akufani nezinduku zokushisela zohlobo lwe-calcium titanium, futhi ukumelana kwazo nokugqwala kuphansi. Izinduku zokushisela zensimbi engenasici zine-calcium titanium zinezinqubo ezinhle zokusebenza futhi zisetshenziswa kakhulu ekukhiqizeni. Njengoba insimbi engagqwali inezici eziningi ezihlukile ku-carbon steel, imininingwane yayo yenqubo yokushisela nayo ihlukile ku-carbon steel. Ama-grating ensimbi engagqwali anezinga elincane lokuzibamba, futhi angaphansi kokushisisa nokupholisa kwendawo ngesikhathi sokushisela, okuholela ekushiseni nokupholisa okungalingani, futhi ukushisela kuzoveza ukucindezeleka nokucindezeleka okungalingani. Lapho ukufinyezwa kwe-longitudinal ye-weld kudlula inani elithile, ukucindezela onqenqemeni lwe-steel grating weldment kuzokhiqiza ukuguquguquka okubucayi okufana namagagasi, okuthinta ikhwalithi yokubukeka kwe-workpiece.

Izinyathelo zokuphepha zokushisela ama-grating ensimbi engagqwali
Izinyathelo eziyinhloko zokuxazulula ukushiswa, ukushiswa kanye nokuguqulwa okubangelwa ukushisela kwegridi yensimbi engagqwali yilezi:
Lawula ngokuqinile okokufaka kokushisa endaweni ehlangene yokushisela, bese ukhetha izindlela zokushisela ezifanele kanye nemingcele yenqubo (ikakhulukazi i-welding current, i-arc voltage, isivinini sokushisela).
2. Usayizi womhlangano kufanele uqonde, futhi igebe lesixhumi esibonakalayo kufanele libe lincane ngangokunokwenzeka. Igebe elikhudlwana lijwayele ukushiswa noma lidale inkinga enkulu yokushisela.
3. Sebenzisa into enoqwembe oluqinile ukuze uqinisekise amandla okubamba alinganayo. Amaphuzu abalulekile okufanele uwaqaphele lapho ushisela ama-grating ensimbi engagqwali: lawula ngokuqinile okokufaka kwamandla endaweni ehlangene yokushisela, futhi uzame ukunciphisa okokufaka ukushisa ngenkathi uqedela ukushisela, ngaleyo ndlela unciphise indawo ethinteke ukushisa futhi ugweme izinkinga ezingenhla.
4. I-Stainless steel grating welding kulula ukusebenzisa okokufaka okuncane kokushisa kanye ne-welding encane yamanje esheshayo. Intambo yokushisela ayijikijeli iye phambili naphambili ivundlile, futhi i-weld kufanele ibe mncane kunokuba ibe banzi, okungcono ingabi ngaphezu kuka-3 ububanzi bocingo lokushisela. Ngale ndlela, i-weld iphola ngokushesha futhi ihlala ezingeni lokushisa eliyingozi isikhathi esifushane, okuzuzisa ukuvimbela ukugqwala kwe-intergranular. Lapho okokufaka ukushisa kukuncane, ukucindezeleka kwe-welding kuncane, okuzuzisa ukuvimbela ukugqwala kokucindezeleka nokuqhekeka okushisayo, kanye ne-welding deformation.