Conas teirmeachúpla de chineál Platanam a ghlanadh i gceart?

Conas teirmeachúpla de chineál Platanam a ghlanadh i gceart?

Is ionstraim tomhais teochta a úsáidtear go coitianta é an teirmeachúpla platanam s-de chineál lómhara ardteochta, a bhfuil feidhmchláir áirithe aige i go leor réimsí . Is é an cuspóir a bhaineann le glanadh ardteochta miotail platinum-rhodium teirmeacháscairí a bhaint as an dirtis a fheabhsú, a gcuid tréithe teirmeach a fheabhsú. Modhanna cothabhála agus glantacháin de theirmeachúpla platanam-rhodium miotail ardteochta?

1. Annealing: Annealing is to remove the internal stress in the electrode, improve the crystal phase of the high-temperature precious metal platinum-rhodium thermocouple, and improve the stability of the high-temperature precious metal platinum-rhodium thermocouple. Through proper annealing temperature and annealing time, the desired goal can be Baineadh amach {. Go ginearálta, tá dhá mhodh anála ann: anáil fuinneamh agus foirnéise ag cur isteach ar .

2. Pickling: Use the oxidizing power of acid to remove organic matter on the surface of the high-temperature precious metal platinum rhodium thermocouple and other impurities that can be dissolved by acid. Put the high-temperature precious metal platinum rhodium thermocouple disc into a circle with a diameter of about 80mm and place it in a beaker, introduce 30% -50% (de réir an chóimheas toirte) aigéad hidreaclórach caolaithe atá íon go ceimiceach (nó aigéad nítreach caol) ar feadh uair an chloig, tóg amach é agus cuir é san eascra . boil in uisce driogtha roinnt uaireanta chun an t -aigéad a bhaint go hiomlán . Is é cuspóir pickling ábhar pickling go hiomlán agus an t -aigéad a bhaint ar an Eleod ar an Electrode go hiomlán. {8} {8} chun ábhar pickling a bhaint go hiomlán ar an Electrode on the Electrode go hiomlán ar an Electrode on the Electrode ar an Electrode go hiomlán ar an Electrode ar an Electrode go hiomlán ar an Electrode. dromchla .

{3. Glanadh sóidiam: Ba ​​chóir an teirmeachúpla platanam miotail ardteochta ardteochta a ghlanadh le borra sóidiam tar éis picil . ar dtús, croch an platanam miotail ardteochta rhodium rhodium rhodium chun an teirmeachán teirmeach a choigeartú chun an teirmeach teirmeach a choigeartú ar an tsreangán platinum ar an gcomh-chomh-chomh-chomh-chomh-chomh-chomhdháil a choigeartú chun an teirmeach a dhéanamh chun an teirmeach a dhéanamh ar an teirmeach a dhéanamh ar an tsreangán platinum sreinge ar an tsreangán ar an gcomh-chomh-aireacht ar an gcomh-chomh-aireacht a choigeartú an teirmeach a dhéanamh ar an tsreangán plating sreing sreing sreing sreinge ar an gcomh-chomh-aireacht ar an gcomh-chomh-chomhdhála ar an tslí a . Touch the hot spot with block-shaped sodium borate to make the boric acid solution flow down the electrode. After cleaning, slowly reduce the current, and then cut off the power supply. Remove the plate into a circle with a diameter of 80 mm and place it in a beaker, and boil it several times with distilled water. , The borate is completely deasctha .

The purpose of sodium borate removal is mainly to affect metals and oxides that are insoluble in hydrochloric acid. Because the sodium borate melts at high temperature and the metal impurities and metal oxides attached to the high-temperature precious metal S-type platinum rhodium thermocouple hot electrode form a boron glass solution, which flows away along the hot electrode to achieve the purpose of removing dirt ar chiseal seachtrach an leictreoid .