Kuti tipindure mubvunzo uyu, tinofanira kutanga tanzwisisa kuti kuputika chii? Uye chii chinonzi metal foam?
1. Zvinoputika zvinonyanya kukamurwa kuita zvinoputika zvemuviri nemakemikari
- Nheyo yekuputika kwemuviri:
Kuputika kwemuviri kunokonzerwa nekuchinja kwemuviri (zvakadai sekushisa, vhoriyamu, kudzvinyirira, nezvimwewo), uye zvinhu uye makemikari ekugadzirwa kwezvinhu zvinoputika hazvishanduki zvisati zvaitika uye shure kwekuputika.
Material kuputika simba rinonyanya kuuya kubva kushrinkage simba, phase transition simba, kinetic simba, kuyerera simba, kupisa simba, magetsi emagetsi, nezvimwe.
Kuwedzeredza kuputika kwegasi isiri kemikari, kuputika kwegasi remvura, kuputika kwegasi rakanyungudutswa uye rakanyanya kupisa mvura, kupisa kwekunyungudika, kupisa kwekupisa, kupisa kweadsorption, kuputika kunokonzerwa nekupisa kwekunze, kuputika kunokonzerwa nekuyerera kwemvura, kuputika kunokonzerwa nekupfuura. , kuputika kunokonzerwa nenzvimbo yekuyerera Kuputika kwemhepo zvese ndezvechikamu chekuputika kwemuviri.
- Misimboti yekuputika kwemakemikari:
Mishonga yemakemikari inomuka kubva mukuita kwemakemikari.
Ingave musanganiswa wezvinopisa uye mhepo, kana inoputika (yakadai se dynamite), chinhu chemakemikari anoputika igadziriro isina kugadzikana, iyo inozosangana nechisimba exothermic reaction pasi pekuita kweimwe simba rekunze. , kubudisa kupisa kwepamusoro uye kudzvinyirira kwakanyanya, uye kubereka simba rinoparadza rakasimba.
- Mamiriro mashanu anotevera anofanirwa kuzadzikiswa:
A. Zvinhu zvinopisa zvinopa simba, kureva, zvinoputika;
B. Combustion accelerants (oxidants), zvakadai seokisijeni, mweya;
Chinhu chinopisa uye chinokurumidzira chinosanganiswa zvakaenzana;
D. Musanganiswa unoiswa munzvimbo yakavharwa (yakapoteredzwa);
Batidza simba rakawanda.
2. Chii chinonzi furo resimbi?
Metal foam imhando yesimbi ine porous ine porosity inodarika 90% uye rimwe simba nekuoma. Ichi chigadzirwa isimbi ine furo yepore, iyo porosity yakakwira kupfuura yeyakajairika sintered porous simbi, uye saizi yepore inogona kusvika 7 mm.
Metal foam imhando mbiri-chikamu chinoumbwa zvinhu zvinoumbwa nepore yakapararira chikamu uye simbi matrix skeleton inoenderera chikamu uye chikamu, uye zvimiro zvayo zvinoenderana nepesvedzero yesimbi matrix, porosity, pore chimiro uye maitiro ekugadzirira.
3. Metal foam inoshandiswa mukuputika-inodzivirira moto wemoto
Metal foam ine mvura yakanaka inopindika uye yakanaka kudzivirira moto. Inogona kuiswa mumapaipi anotakura magasi kana zvinwiwa kumisa kuputika nekukweva kupisa kumisa kupararira kwemirazvo.
Ichi chigadzirwa chakakodzera acetylene, okisijeni flame gasi welding uye gasi yekucheka tekinoroji, mota dzemigodhi uye magetsi ekuchinja, mafuta ekunatsa uye anopisa gasi mapaipi, anopisa masisitimu, oiri uye gasi kudzoreredza masisitimu, kupisa mavira, gasi rekuchenesa masisitimu, nezvimwe. Inoshandiswa semoto-uchapupu uye kuputika-chiratidzo chekuzadza matangi ekuchengetera senge liquefied gasi nemafuta.
Nguva yekutumira: Kubvumbi-08-2022 
