Coating method thlan dan chu eng nge ni?

Coating method thlan dan chu eng nge ni?

Coating method tam tak a awm a. DIP coating methods ah hian dip coating, roll coating, blade coating, leh wire-wound rod coating, etc. Preset quantity coating methods ah hian slide coating, slot-Die coating, extrusion coating, leh curtain coating, etc. Coating method engemaw zat chu chipchiar takin kan sawi tawh a. A hnuaiah hian coating method dangte chu tawi te tein kan rawn tarlang dawn a ni.

DIP coating hi coating method a ni a, web chu a thun chhunzawm zel a, slurry tank atang chuan a chhuak a, a tam lutuk chu tank chhungah a luang lut leh a, Figure 5-89-ah hian a lang. DIP coating hi a tlangpuiin double-sided coating a ni a, chuvangin web-a pulling direction chu a tlangpuiin liquid surface-ah perpendicular a ni a, chu chuan web sir lehlama coating thickness chu a inmil em tih a enfiah a ni. A tlangpuiin, coating thickness hi viscosity, density, line speed, leh pull-out angle-ah a innghat a ni. Web surface-a slurry coating thickness chu slurry viscosity leh coating speed a san chuan a thick zual zel a. Dik tak chuan DIP coating pawh hi complex workpieces intermittent operation atan a tha a, mahse solvent volatilization rate a rang chuan flow a awm dawn a ni.

Fig 5-89 Dip Coating Method

Blade coating hi coating method a ni a, blade hmangin coating roll emaw web emaw a slurry coating thickness chu a thickness tarlan angin a tihtlem a, Figure 5-90 a kan hmuh ang hian. Chumi zingah chuan boruak lumna leh coating weight of air-knife coating chu boruak-knife pressure leh air jet velocity-ah a innghat a, a bik takin low-viscosity emaw medium- hniam-viscosity water-based sluries-ah a tha hle. Organic solvent-based slurry hman hunah chuan boruak tam tak leh kang thei solvent vapor atanga puak thei thil inzawmkhawm siam loh nan fimkhur a ngai a ni.

Fig 5-90 Blade Coating

Curtain coating hi coating method a ni a, slurry chu slot atanga extrude a, running web-ah liquid curtain angin a tla thla a ni. Preset quantity coating method-ah a tel a, Figure 5-91-a kan hmuh ang hian. Extrusion die lip leh web inkar hlat zawng hi a lian a, curtain-ah hian air bubble a awm loh avangin, stringing leh scratch ang chi defect tihbo kawngah advantage langsar tak a nei a ni. Curtain-a kinetic energy tam zawk avang hian meniscus a stabilize theih avangin coating speed sang zawk a awm thei a ni. Line speed hi 100 m/min aia tam a thleng thei a, high-precision battery coating solution-ah pawh hman a ni nasa hle.

Figure 5-91 Falling curtain coating; Figure 5-92 Wire rod coating

Wire-Wound rod coating hi coating method a ni a, wire-Wound metering rod hmangin web nem takah liquid chu uniform takin a coat thei a, Figure 5-92-ah hian kan hmu a. Wire-wound rod hi core rod vel a tightly winding polished stainless steel wire hmanga siam a ni. Wire-wound rod hi coating rod emaw doctor rod emaw an ti bawk. Winding wire a hring nasa hle a nih chuan coating thickness accuracy chu micron tlemte chhungin a thleng thei a ni. Low-Viscosity liquid chu wound metal wire-ah awlsam takin a luang chhuak thin avangin low-viscosity liquids coating atan a tha hle. Special coating rods hmangin coating viscosity chu a sang hle thei a, coating thickness pawh 225 μm a tling thei bawk. Rod coating speed hi a tlangpuiin 304 m/min thlenga tihtlem a ni.

Coating method thlan dan hi systematic project a ni a, ngaihtuah tur tam tak a awm bawk. A hnuaia tarlan te hi coating method thlan huna ngaihtuah tur pawimawh ber berte an ni:

Coating method tam zawk hi layer khata coating atan a tha a, layer dang a lo vawt hnuah layer dang coated a ni bawk. Method thenkhat chuan layer tam tak chu a rualin a coat thei a, chu chu slide coating ang chi te, color film coating-a a ruala layer 9 tal coat theih te hi a ni. Coating head of curtain coating chu slide coating head a ni a, coating layer pawh a sir lamah a luang thla a, chuvangin multilayer coating pawh tih theih a ni bawk. Slot-Die coating leh extrusion coating hian single-layer coating an ti tlangpui a, mahse lithium-ion battery siamtute mamawh em em multilayer coating atan extrusion slot pahnih emaw pathum emaw an nei thei bawk.

Wire-Wound rod coating hi thin-layer coating atan a tha a; Extrusion coating, reverse roll coating, leh curtain coating te hi thick coating atan a tha a, 400–750 μm a thleng thei. A tlangpuiin, coating a thinner chuan coating harsatna a tam zawk thin. Heta kan sawi tawh thickness hi wet coating thickness a ni tih hriat a tha a, dry coating leh wet coating inkar danglamna pawh a lian hle bawk.

Viscosity leh viscoelasticity hi taksa lam thil (physical quantities) a ni a, chu chuan rheological property a lantir a ni. Coating method tin hian viscosity leh shear rate tha tak tak range engemaw zat an nei a. Slurry viscosity hi coating shear rate-a viscosity tehna hmanga thlan a tha ber a, a chhan chu viscosity hi shear rate nen a inthlak thin a ni. Lithium battery slurry formulation for leading lithium-ion battery material supplier te tan chuan precise viscosity control chu process stability-a thil pawimawh tak a ni ta a ni. Mahse, preset quantity coating process-ah chuan slurry-a a awm tlangpui shear rate chu a sang lutuk a, chuvangin chutiang shear rate sang tak chu current instruments hmanga tihhlawhtlin a harsa a, chuvangin viscosity estimation chu a rough a, a tawpah chuan experimental result chu a chak zawk ang. Viscoelasticity hi pawimawh tak ni mahse, sawi lawk a harsa hle. Viscoelasticity thenkhat chuan coating thenkhat hnathawh that nan a pui a, mahse high viscoelasticity hian dragging defects a ti tlai thei a ni.

Precision slot-Die coating, slide coating, leh curtain coating te hian coating precision sang zawk an nei a, chutih laiin coating method dang precision chu fluid property, roller geometry, rotation speed leh thil dang ah a innghat thung. Coating method tin hian coating range zau tak an nei a, chu chu coating device structure leh operation mode-ah a innghat a ni. Battery electrode coating equipment te chu a tha taka optimize mai chauhvin coating result tha tak a awm thei.

Web hi non-permeable emaw permeable emaw a ni thei. Permeable web tan chuan pores te hi coating hmain seal theih a ni. Web-a roughness leh surface tension ngaihtuah a ngai bawk. Slurry surface tension chu web aiin a hniam zawk tur a ni.

Coating speed hi production efficiency nen a inzawm tlat a ni. A theih chuan coating speed a rang zawk chuan a tha zawk. Coating method zawng zawng hian coating speed limit an nei vek a, mahse method thenkhat chu high-speed coating ah chuan a tha zawk. Curtain coating hian curtain a tear loh nan flow rate tlem ber a mamawh a, chuvangin high-speed coating chu layer a te lai chuan tih theih a ni lo. Slide coating ah chuan coating layer a te hle a nih chuan coating layer chu a unstable ang. Speed sang zawk leh coating layer thick zawk hian instability coating awm loh nan a pui bawk. Chutiang bawkin smooth leh non-permeable web pawh speed sang zawka coated theih a ni. Coating speed pawh hi drying section sei zawng nen a inzawm a ni. Drying section a rei poh leh drying rate tihsan a tha zawk.

Coating hman dan leh an hman theih range te chu Table 5-6 ah hian tarlan a ni.

Bithliahna	Coating hman dan .	Shear rate /s⁻1 a ni.	viscosity /pa·s tih a ni.	Wet thickness /μm .	A coating precision /% a ni.	A tlan chak ber /(m/min) .	Web roughness-in nghawng a neih dan .
Leveling 1000 a ni.	Leveling 1000 a ni.	0.01-0.10	-	-	-	-	-
	Air Knife 1000 a ni.	-	0.005-0.5	2-40	5	500	Sang
	Wire-Thil tiang hrui hrual hruihrual .	-	0.02-1	5-50	10	250	Sang
Single Layer a ni .	Blade hmanga khuh a ni .	1000-10000	0.5-40	1-30	-	1500	Sang
		20-40000
	Reverse roll hmanga inthuamna .	100-10000	0.1-50	5-400	5	300	A tlem hle mai .
		1000-100000
	slot-Die coating a ni.	3000-100000	0.005-20	15-250	2	400	A tlem hle mai .
	Extrusion coating a awm em?	-	50-5000	15-750	5	700	-
Multilayer 1000 a ni.	Slide coating a awm em .	1000-10000	0.005-0.5	15-250	2	300	A tlem hle mai .
		3000-12000
	Curtain hmanga siam a ni.	1000-10000	0.005-0.5	2-500	2	300	A tlem hle mai .

Lithium{{0}ION battery electrode sheet te coating dan chu a bul berah chuan roll coating leh extrusion coating a ni. Reverse roll coating hian shear rate sang zawk a mamawh a, viscosity sang zawk nei slurry tan a tha a, coating film thick zawk leh coating quality tha tak a hmu a, tunah hian lithium-ion battery hman tlanglawn ber a ni. Extrusion coating hian industry-a coating technology hmasawn tak a entir a ni. Coating laiin slurry-ah pressure engemaw zat an hmang a, chu chu viscosity sang zawk slurry coating atan hman theih a ni. Electrode sheet hmuh chhuah hian precision a nei sang zawk a, fast coating speed a nei bawk. Lithium battery technology a lo thang zel a, lithium-ion battery siamtute chu energy density sang zawk leh consistency sang zawk nei tura an mamawhna a san chhoh zel avangin, extrusion coating, state-of-Art Battery Electrode Coating Equipment leh High-precision battery coating solutions te chuan next-generation production lines-ah an hmang nasa zawk dawn a ni.