Pab koj xaiv cov khoom siv raw ntawm thermal so strips

Cov khoom siv hluav taws xob tawg tuaj yeem tsim los ntawm ntau yam khoom siv, suav nrog ABS, PVC, PA66GF25, PU, thiab PPO. Cov khoom siv dav tshaj plaws rau thermal tawg ntawm lawv yog PA66GF25. Muaj ntau yam zoo rau thermal so strips ua los ntawm PA66GF25 granules (PA66 txhawb nqa los ntawm 25% iav fiber).
1.Nws tuaj yeem pab txo cov cua sov.
2.Nws tuaj yeem tiv thaiv condensation.
3.Nws tuaj yeem txo qhov kub poob thiab txuag lub zog.
4.Nws tuaj yeem txo cov suab nrov.
5.Nws tuaj yeem txhim kho cov dej nruj, huab cua nruj thiab cua siab ua haujlwm ntawm lub qhov rooj thiab qhov rais.
6.Its linear expansion coefficient yog ze rau ntawm aluminium profiles.

Tom qab ntawd yuav ua li cas xaiv cov khoom tsim nyog rau polyamide thermal so strips?
1.Cov khoom siv raw yuav tsum yog PA66, thiab cov ntsiab lus ntawm PA66 yuav tsum ntau dua 65%.
2.Cov ntsiab lus ntawm cov iav fiber ntau yuav tsum nyob rau hauv qhov tsim nyog. (25% ± 2.5%)

Vim li cas cov khoom siv raw yuav tsum yog PA66?
1.Lub melting point ntawm nkauj xwb PA66 yog nyob ib ncig ntawm 252 ℃, thaum lub melting point ntawm PA6 tsuas yog 215 ℃.
2.Nws thermal decomposition kub yog siab tshaj 350 ℃.
3.Nws tuaj yeem tiv taus cov kua qaub, alkali, thiab feem ntau inorganic ntsev daws.
4.Nws muaj kev hnav zoo heev, nws tus kheej lubricating zog, thiab muaj zog txhua yam.

Txawm li cas los xij, tam sim no muaj qhov tshwm sim hauv kev ua lag luam uas PA66 hloov nrog lwm cov ntaub ntawv xws li PA6, cov khoom sib xyaw ntawm PA thiab PE, cov khoom sib xyaw ntawm PA thiab PP, thiab lwm yam. Lawv cov txheej txheem thev naus laus zis zoo ib yam li PA66GF25 cov khoom, yog li nws tsis yooj yim. rau cov neeg siv khoom kom pom cov khoom sib txawv thaum tsim cov thermal so strips. Txawm hais tias cov khoom siv no pheej yig, nws txi lub zog thiab kub tsis kam ntawm polyamide thermal so strip thaum txo nqi. Qhov no tuaj yeem ua tau yooj yim ua kom tiav thermal tawg aluminium qhov rooj thiab qhov rais uas tsis muaj cov yam ntxwv xws li cua siab tsis kam, huab cua nruj, thiab dej nruj.

Vim li cas peb yuav tsum tau ntxiv iav fiber ntau?
1.Cov coefficient ntawm linear expansion ntawm PA66 yog (7-10) X10^-5, thaum lub coefficient ntawm linear expansion ntawm txhuas profiles yog 2.35x10^-5, uas yog txawv heev.
Tab sis tom qab ntxiv 25% iav fiber ntau, linear expansion coefficient ntawm PA66GF25 khoom yog hais txog (2.3-3.5) × 10^-5, uas yog ze heev rau linear expansion coefficient ntawm txhuas profiles.
Thaum lub ambient kub hloov, tsuas yog thaum lub coefficient ntawm linear expansion yog los ze zog, ces lub elongation thiab contraction ntawm ob cov ntaub ntawv yuav tsuas tswj synchronous hloov, thiaj li tsis cuam tshuam rau lub stability ntawm lub composite qauv.

2.Vim cov yam ntxwv creep ntawm PA66, nws deformation yuav nce nrog lub sij hawm nyob rau hauv tej yam kev nyuaj siab sab nraud. Txhawm rau txhawm rau txhawm rau nkag mus ntawm PA66, PA66 ntxiv dag zog nrog 25% iav fiber ntau tuaj yeem ua rau nws zoo ib yam li aluminium profiles hais txog lub zog, rigidity, thiab thermal deformation kub.

3.Nyob rau hauv cov txheej txheem ntawm kev tsim PA66GF25 granules, yog hais tias cov iav fiber ntau zoo tuaj yeem muab ntxiv rau hauv txoj kev raug thiab kev faib ua feem, cov iav fiber ntau yuav tsum sib npaug ntawm kab rov tav thiab ntsug hauv polyamide thermal so strips, uas tuaj yeem txhim kho ob qho tib si longitudinal tensile. lub zog thiab transverse tensile zog.

Txawm li cas los xij, tam sim no, qee cov tuam ntxhab hauv Suav teb siv cov zaub mov pheej yig (xws li calcium carbonate, iav microspheres, thiab lwm yam) rau kev sau. Txawm hais tias cov hom pob zeb no tuaj yeem txo tus nqi, tab sis lawv tsis tuaj yeem txhim kho qhov ua tau zoo ntawm PA66. Dab tsi yog qhov phem dua, lawv yuav txo qhov kev ua tau zoo ntawm PA66.
Cov khoom siv PA66 ntxiv dag zog rau cov zaub mov muaj ntau yam tsis xws luag xws li tsis muaj zog thiab tsis muaj cua sov tsis zoo, uas tuaj yeem ua rau tsis zoo thermal so strips kom loosen hauv aluminium profile thaum lub sij hawm tsim thiab siv tiag tiag, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias heev, qhov teeb meem loosen. yuav mob hnyav dua.
Qhov no tuaj yeem ua rau lub qhov rais loosen thiab deform, ua rau huab cua thiab dej nruj ntawm lub qhov rooj thiab qhov rais. Hauv qhov xwm txheej hnyav, nws tuaj yeem ua rau lub qhov rais xoob thiab tshem tawm tag nrho, ua rau muaj kev nyab xeeb loj hauv lub tsev.

Hauv ib lo lus, thaum koj xaiv cov khoom siv raw ntawm thermal so strips, nws yuav tsum yog PA66GF25 khoom. Thiab cov khoom siv raw rau PA66GF25 cov khoom yuav tsum yog PA66 thiab cov iav fiber ntau zoo.
Tsuas yog cov khoom siv raw zoo tuaj yeem ua cov khoom zoo.