Mechanical Properties yePolymer Zvigadzirwa

August 22, 2024

Michina yezvivakwa

1. Simba reSimba

Mune iyo tembiricha yakatarwa yekudziya, kukurudzira uye kumhanya kwekushandisa, pamwe neyekufungidzira axial nhungamiro yekuisa tensile mutoro, kusvikira iyo yekufungidzira kukuvara. Fungidziro inopwanyika nekushushikana kwakanyanya kwetenile, inonzi TensILE Simba (Simba reCendele). Tensile Simba (σt) rinoverengwa zvinoenderana neyekutevera formula:

Iko p ndiyo yakanyanya kuparadza mutoro, n; B ndiko upamhi hwefungidziro, m; d ndiko ukobvu kweiyo fungidziro, m. Iyo yakakwira inoparadza mutoro weiyo fungidziro, n, ndiyo yakanyanya kukuvara mutoro.

1. ELOLOLOLETION TO Break (etT) yakaverengerwa zvinoenderana neye inotevera formula

Uko l0 ndiyo yekutanga yekubudirira kureba kweiyo fungidziro, mm; L ndiyo yakanyanya kureba kweiyo fungidziro kuKutsvuka, mm.

2) Retio yaPoisson mune yakaunganidzwa yezvinhu, kukosha kwakakwana kweiyo ratio yeanotenderera kunonetsa kwenguva refu Poisson's ratio (ν) inogona kuverengerwa neiyo inotevera formula:

Where Iven the transner train uye iyo ndiyo long istudinal train.

3) Tensile Modulus yeKuwedzera Muganho Muenzaniso, chiyero chekushushikana kwakanyanya pane izvo zvinoenderana nedombodo yeClasticity yeElasticity (yakafanana nerudocity), anozivikanwawo seVadiki eVadiki. Iyo tensile modulus ye elasticity (et) inoverengwa zvinoenderana neyekutevera formula:

Pane σt is is is is is is the trust

Test Standard: GB / T 1040-2022 Test nzira yeiyo tensile zvivakwa zvemapurasitiki.

2. Kumanikidza Simba

Mutoro unomanikidza unoiswa pamigumo miviri yeiyo fungidziro kusvikira iyo fungidziro raptures (brittle zvinhu) kana goho (risiri-brittle zvinhu).

Kana kubiwa Iyo yekumanikidza Simba (σc) inoverengwa zvinoenderana neyekutevera formula:

Iko p ndiko kupatsanurwa kana kupa mutoro, n; F ndiyo yekutanga muchinjiko-chikamu chenzvimbo yeiyo fungidziro, m2.

Iyo yekumanikidza moduus (ec) inoverengwa neiyo inotevera equation:

Iko σc isinganetseki kushushikana, pa; okc inoenderana.

Bvunzo

3. Simba rinoshanduka

Iko kushushikana kwakanyanya kunogadzirwa kana zvinhu zvichinge zvave pasi pemutoro unoparadza kana kusvitsa degree rakatsanangurwa rinonzi rinoshandisirwa simba. Simba rinosindimara (σF) rinoverengwa zvinoenderana neye inotevera formula:

Iko p ndiko kukotama mutoro pane iyo fungidziro, n; L ndiyo spank of the fungidziro, m; B ndiko upamhi hwefungidziro, m; d ndiko ukobvu kweiyo fungidziro, m.

Flexural Mowelus yeElasticity: Plastiki mune yakaunganidzwa yekukotama kushushikana uye yayo inoenderana nehurongwa hwekuti undie mwero weElasticity

Iyo Flexural Mowelus (ef) inoverengwa neiyo inotevera formula:

Iko σF ndiko kushushikana kwakapfuura, PA; denga ndicho chinhu chakakotama.

Bvunzo standard: gb / t 9341-2008 bvunzo nzira yekukotama kuita kwepurasitiki.

4. kukanganisa simba

Chinja simba (kukanganisa simba) inomiririra kugona kwakanyanya kwezvinhu zvakarasa mutoro wekukanganisa. Ndokunge, pasi pemutoro wekukanganisa, kuparadzwa kwebasa rebasa rakadyiwa uye huwandu hwenzvimbo yemuchinjiko-chikamu chemuenzanisiro. Pane nzira mbiri dzekuyedza dzekukanganisa simba rezvishandiso.

1) Ingotsigirwa Beam gadziriso yekuedza nzira isina kugadziriswa kukanganisa kukanganisa simba (αn) uye isina kuchenjera kukanganisa simba (αk) inoverengerwa zvichienderana neyekutevera formula:

Unnotched impact strength (αn) and notched im

uye

Kupi, iri iro basa rinodyiwa nemuyedzo usina kuoneka, J; Ak ishandare inopedzwa neasina kukosha fungidziro, j; b ihupamhi yebvunzo, m; d uhupamhi hwenhoroondo isina kucherechedzwa, m; DK iri iyo inozivikanwa fungidziro yakacheneswa pane yakasara ukobvu, m. 2) Canlimber Beam gadzira nzira yekuyedza nzira iyo nzira inoshandisa iyo inozivikanwa yekufungidzira, iyo Impan Simba (αk) inoverengerwa seinotevera

2) Cantilever Beam gadziriso bvunzo nzira iyi nzira iyo nzira inokwana mitezo, uye iyo Impan Simba (αk) inoverengwa zvinoenderana neyekutevera formula:

Kupi AK ibasa rakadyiwa riini iyo fungidziro inopwanya, J; Iro ibasa rakadyiwa nekukanda magumo emahara emufungidziro, j; B ndiko kupamhidzirwa kweiyo fungidziro kuNotch, m.

Bvunzo

GB / T 1843-2008 IMICT Test nzira yePlastic Cantier Beam; GB / T 14485-1993 Impact bvunzo nzira yeinjiniya mapurasitiki

14485-293 bvunzo nzira yekukanganisa kuramba kweinjiniya mapurasitiki akaomarara mapurasitiki epurasiti nepurasitiki zvikamu; GB / T 11548-1989 Nzira yekuyedza yekukanganisa kuramba kweiyo plate yepurasitiki

Kudonha Hammer nzira; GB / T 13525-1992 bvunzo nzira yeiyo tensile inokanganisa kuramba kwepurasitiki.

5. kuomarara

Kuomesa kunoreva kupokana kwezvinhu zvePolymer kune induction uye kukwenya. Maererano nenzira yekuedzwa, kune mana anowanzo shandiswa tsika.

1) Brinell kuomarara HB (Brinell kuomarara)

Isa imwe dhayamita yebhora reSimbi, pasi pechiitiko chakataurwa, chengetedza iyo fungidziro uye chengeta imwe nguva, kusvika pakudzora kweiyo induction yekufungidzira kuti inzvimbo yekuverengera yeSimba, na

Seyero yekuomerwa. Zvirevo zvavo

uye

Kupi p ndiko kuiswa mutoro, n; D ndiye diamita yeiyo simbi bhora, m; d di madhiri eyakagadziriswa, m; H ndiko kudzika kweiyo induction, m.

Kwayedza Standard: Hg2-168-65 Brinell Harness Test nzira yePurastics

2) kuomesa kuomesa

Pasi pechiitiko cheiyo indender ine mutoro wakataurwa, kudzika kwesango renje rakamanikidzwa mumuenzaniso mushure menguva yakatarwa yenguva inotorwa seyero yeiyo mwero wekukonzera hutsinye. Kuomarara kwepamhere kwakakamurwa kuita mahombekombe a uye Shore D. Iyo yekutanga inoshanda kuti ishandiswe. Iyo yekupedzisira inoshanda kune zvakaoma zvinhu.

Kwayedza Standard: GB / T 2411-2008 Shore Hardness Test nzira yePurasitiki

3) Rockwell kuomarara

Rockwell kuomarara kune nzira mbiri dzekutaura. ① Rockwell hardness Steel Ball bhora, mumutoro kubva kuRutakura zvishoma nezvishoma wedzera mutoro mukuru, wobva wadzokera kumutoro wekutanga, bhora mune yakadzika pakuwedzera kwedanho rekuwedzera, seyero yekudzika rockwell Kukosha, kunoratidzwa mune chiratidzo HR. Iyi nzira yekutaura inoshanda pazvinhu zvakaoma, yakakamurwa kuita r, m, l chiyero.

Kwayedza Standard: GB / T 9342-88 Rockwell Hardness Test nzira yePurastics

Dengowell homarara kune imwe diamita yebhora reSimbi, pasi pechiitiko cheiyo yakataurwa mutoro, yakamanikidzwa mukudzika kweiyo chiyero cheyero yekuyera kukosha, inoratidzwa muH.

Bvunzo

4) kuomarara kwebhariki

Inonyanyo indent inonyanyo yakamanikidzwa mune chiyero chechiteshi pasi pekumanikidzwa kwechitubu.

Kumanikidzwa kweRubile neanonyanyoka mune yakajairika chitubu kumanikidzwa mune iyo fungidziro, kudzika kweyakagadziriswa kuomesa kuomesa kwezvinhu zvekufungidzira. Iyi nzira yakakodzera kusarudza kuomarara kweFiber yakasimbiswa mapurasitiki uye zvigadzirwa zvavo, uye zvinogona zvakare kuiswa pakuomesa kwemamwe ma plastic.

Test Standard: GB / T 3854-2017 Fiber-Fiber-Inosarudza Plasttics Bachmann (Bakel)

Nzira yakaoma yekuedza.

6. Creep

Pasi pemamiriro ekugara achigara uye humidyity, kusvibiswa kwechinyorwa kuchawedzera nenguva pasi pekuenderera mberi kwekuita kwekunze kwekunze simba rekunze.

Pasi pekudziya nguva dzose uye humidity mamiriro, izvo zviri pasi pekuenderera mberi kwechiitiko chekunze kwekunze, kushatirisa kunowedzera nenguva; Kushambadzira zvishoma nezvishoma kwakapora mushure mekubviswa kwesimba rekunze, chiitiko ichi chinonzi creep (Creep).

Ichi chiitiko chinonzi Creep. Nekuda kwehunhu hwakasiyana hwesimba rekunze, kazhinji rinogona kukamurwa kuita tonile creep, kumanikidza kukanda, shear inokambaira uye yakakotama.

Kwayedza Standard: GB / T 11546-2022 Kutsunga Kwekuti Creep Performance of Plastics

7. Kuneta

Kuneta (Kuneta) ndeyekuti zvinhu zvakaiswa pasi pekushushikana cyclic kusagadzikana kana kushushikana kunokonzerwa nekuchinja kwenzvimbo yemuno uye kuremara kwemukati mukushanduka kwemukati mukusimudzira. Kuneta ndiko maitiro ekuchinja kwenzvimbo uye kusimudzira kwehurongwa hwemukati hwakakonzerwa kana zvinhu zvichinge zvanetsa kushushikana kwe cyclic.

8. kupokana uye kupfeka

Zvinhu zviviri zvinosangana nemumwe, kune hukama hwenyika pakati peumwe neumwe kana hukama hwekudzinga maitiro, simba rekuita pakati peumwe neumwe kuti varegedze kudzingwa, Iyo coefficient yekupokana uye pfeka zvinoonekwa zvivakwa zvezvekushandisa.

1) Forcection coefficient (coeff friction)

Maximum Static Friction fmax akaverengerwa zvinoenderana neyekutevera formula

uye

ipo μk μk ndeyekuenderana neKinetic kukakavara, uye p ndiko kudzvinyirira kwakanaka, N.

2) abrasion

Iyo huwandu hwekurasikirwa kwemidziyo mushure mekupokana kwenguva yakati rekisiti kana kosi yenguva pasi pemamiriro ezvinhu akaongororwa anonzi abrasion.

Kuwanda kwekurasikirwa kwemidziyo mushure mekupokana kwenguva yakati kana kosi inonzi abrasion. Zviri nani iyo abrasion kuramba zvinhu, iyo yakaderera huwandu hweabrasion.

Test Standard: GB / T 3960-2016 Kutsvedza Kukakavara Kwekupfeka Nzira yePurasitiki GB / T 5478-2008 Rolling Pfeka nzira yekuedza.

Zvadaro

Taura nesu

Author:

Ms. Tina

E-mail:

sales@honyplastic.com

Phone/WhatsApp:

8618680371609