Silicone foam products grade chu aspect pahnih atang hian i hre thei ang: "subjective experience judgment" leh "objective data detection"
1. Subjective experience rorelna (preliminary leh rapid screening).
Hetiang method hi scenario hrang hrang, procurement thlan leh incoming materials enfiah hmasak ber ang chi te hman theih a ni. Precision instruments a mamawh lo va, experience engemaw zat a phut thung.
A lan dan leh a rawng .: High-Grade products hian rawng inang leh inmil tak tak an nei a, color danglamna langsar tak tak, stain emaw impurity emaw an nei lo. Low-Grade products te hi a rawng a dum thei a, a inang lo thei a, spot a nei thei bawk.
Surface: Surface cell structure chu a tha tur a ni a, a inang tlang tur a ni a, a chhiatna lian tham a awm tur a ni. Kut hmanga khawih a nih chuan a hrual leh a flat ang tih a hriat tur a ni a, grainy emaw tearing sensation emaw chiang tak awm lovin. Poor-Quality products hian surface rough, crack emaw holes emaw a nei thei.
Riruang:Cutting process a tha hle a, a sir tha tak tak, burr, flash leh deformation te a awm lo. Hand feel leh elasticity: Kut hmanga press a nih hnuah high-grade silicone foam chu rang takin a lo rebound thei a, a original shape-ah a kir leh thei a, permanent deformation a awm lo tluk a ni. Low-Grade products te hian rebound an nei slow a, indentations pawh an chhuahsan thei bawk.
A nêm (softness) .: Soft to the touch, compress nuam tak, leh batch hrang hrang softness te chu a inmil tur a ni. A harsa lutuk leh a nem lutuk hi non-compliance chhinchhiahna a ni thei.
Texture 1000 a ni.: A pum puia a texture chu a inang tlang hle. Kut hmanga i inthlak chuan toughness leh strength tha tak i nei thei a, awlsam takin a chhe thei dawn lo. Inferior products chu brittle emaw stiff emaw a ni thei.
High-Quality silicone foam products te hian rim an nei lo tlangpui a, silicone material rim nam tak tak chauh an nei bawk. Chemical rim emaw, rim mak tak emaw a hriat chuan, a siam chhuahnaah hian inferior additives (inferior vulcanizing agents emaw foaming agents ang chi) hman a nih theih thu a tarlang a, a nih loh leh residual solvents a awm thei tih a tilang bawk. Low-grade product a ni a, boruak tichhe lo pawh a ni thei.
Pahnihnaah chuan, thil tum neia data test (precise leh thuneihna neia grading) .
Hei hi a tawpah chuan quality grade of products tihfelna atana thuneihna nei method a ni a, chu chu professional testing equipment leh standardized testing methods-ah a innghat a ni.
A hnuaia performance indicator te hi a sawi ber a ni:
eng nge ni tih chu density a ni.? Unit volume khata mass (g/cm3) a ni. Engvangin nge pawimawh: density hian direct takin a rit, a nem leh a khauh, a buffering performance leh a man a to hle. Application scenario hrang hrang hian density atana thil tul hrang hrang an nei a (entir nan, sealing atan chuan density sang tak a ngai a, shock absorption atan chuan density hniam a ngai thei bawk). High-grade products density value hi a stable a, design target value atanga deviate tlem tak a ni.
Compression set chu eng nge ni:Sample pakhatin temperature leh hun bituk chhunga deformation engemaw zat a compress hnua a san zawng a lak let theihna. Elastic recovery performance tehna atana hmanraw pawimawh tak a ni. Engvangin nge pawimawh: He indicator hian hun rei tak hnua seal a hlawhchham dawn leh dawn loh direct-a a hriat chian avangin a pawimawh hle. A hlutna a hniam chuan resilience leh creep resistance a tha zawk a, product dam rei zawk a ni bawk. Entirnan, temperature sang takah (125℃/150℃) darkar 22 chhung compression rate 30% hmanga test a nih chuan low-grade products deformation chu 20% aia tam a ni thei a, high-grade products te chu 5% aia tlem lo chhungah control theih a ni thung.
Temperature resistance & thermal stability chu eng nge ni:High-temperature (200℃ang chi ) leh low-temperature (-40℃) environment hnuaia product performance inthlak danglamna chu a enfiah a ni. Engvangin nge pawimawh: Silicone thatna bulpui ber chu a temperature range zau tak hi a ni. High-grade products hian temperature sang leh hniam cycle an tawn hnuah pawh elasticity tha tak leh physical property tha tak an la nei thei a, brittle, melting emaw cracking emaw an nei lo.