Ndeapi maparameter e epoxy resin board

Kuti uwane yakanakisa kushandisa maitiro epoxy resin board, mamwe ma paramita anodiwa. Mune zvinotevera, vagadziri vane hunyanzvi vanozotipa yakadzama sumo. Huya udzidze zvakawanda nezvazvo.

Parameter classification ye epoxy resin sheet: dielectric inogara parameter, dielectric kurasikirwa parameter, TG kukosha parameter.

Epoxy resin sheet ipepa rePCB rine mativi maviri emhangura rakagadzirwa neepoxy resin + girazi jira. Iyo inowanzoshandiswa FR4 copper-clad sheet ine hama dielectric constant ye4.2-4.7. Iyi dielectric constant inochinja nekupisa. Mune tembiricha ye 0-70 madhigirii, iyo yakanyanya shanduko shanduko inogona kusvika 20%. Shanduko yedielectric constant ichaita 10% shanduko mukunonoka kwemutsara, uye nepamusoro tembiricha, kunowedzera kunonoka. Iyo dielectric inogara ichichinja neiyo frequency frequency. Iyo yakakwirira iyo frequency, idiki iyo dielectric constant. Kazhinji, kukosha kwechinyakare kweiyo dielectric constant ndeye 4.4. Iyo dielectric inogara ichichinja ne frequency sezvakaratidzwa muFig.

Dielectric constant (Dk, ε, Er) inosarudza kumhanya uko masaini emagetsi anofamba pakati. Kumhanya kunofamba masaini emagetsi kunopesana neskweya mudzi wedielectric constant. Iyo yakaderera iyo dielectric garageti, inokurumidza kufambisa kwechiratidzo. Ngatiite mufananidzo wekuona. Zvakaita sekunge uri kumhanya pamahombekombe, uye kudzika kwemvura kunonyudza zvitsitsinho zvako. Iyo viscosity yemvura ndiyo dielectric constant. Iyo yakawanda viscous mvura, iyo inokwira iyo dielectric constant, uye inononoka iwe kumhanya.

Iyo dielectric yenguva dzose haisi nyore kuyera kana kutsanangura. Izvo hazvina hukama chete nehunhu hwepakati pachayo, asiwo kune yekuyedza nzira, bvunzo frequency, uye mamiriro ezvinyorwa pamberi uye panguva yekuyedzwa. Iyo dielectric constant ichachinjawo nekuchinja kwekushisa. Zvimwe zvinhu zvakakosha zvinofunga nezve tembiricha chinhu mukukudziridza. Humidity zvakare chinhu chakakosha chinokanganisa dielectric constant, nekuti dielectric constant yemvura ndeye 70, uye kune hunyoro hushoma. , zvichakonzera kuchinja kukuru.

Dielectric kurasikirwa kwe epoxy resin sheet: kurasikirwa kwesimba mukati meiyo insulating zvinhu nekuda kweiyo hysteresis mhedzisiro ye dielectric conductance uye dielectric polarization pasi pemhedzisiro yemunda wemagetsi. Iyo inonziwo dielectric kurasikirwa, inonzi dielectric kurasikirwa. Pasi pemugumisiro wemagetsi emagetsi, iyo inopindirana angle δ yekona yakabatanidzwa (power factor angle Φ) pakati pezvino phasor uye voltage phasor inoyerera mu dielectric inonzi dielectric loss angle. Iyo dielectric kurasikirwa kwe epoxy resin sheet kazhinji 0.02, uye kurasikirwa kwedielectric kuchawedzera nekuwedzera kwema frequency.

TG kukosha kwe epoxy resin sheet: inozivikanwawo segirazi shanduko tembiricha, kazhinji 130 ℃, 140 ℃, 150 ℃, 170 ℃.