Plastic Part siamna atana Structural Process te chu engte nge ni?

Plastic Part siamna atana Structural Process te chu engte nge ni?

Plastic parts atana structural process design-ah hian geometry, dimensional accuracy, draw ratio, surface roughness, wall thickness, draft angle, hole diameter, fillet radii, mold draft angle, leh reinforcement ribs te ngaihtuah a ngai ber a ni. He article hian heng point tinte hi a sawifiah ang a, thermoforming process chhunga heng elements te hi product quality leh production efficiency tihsan nan optimize dan tur a sawiho ang.

1. Geometry leh Dimensional dikna (Dimensional Accuracy) te

Atang khan plastic thermoforming hmanga siam a ni tih hi secondary processing method a ni a, a bik takin vacuum forming-ah chuan plastic sheet leh mould inkarah gap a awm fo thin. Tin, shrinkage leh deformation, a bik takin protruding area-ah te hian wall thickness a ti thin a, chu chuan a chakna a ti tlahniam thei bawk. Chuvangin, vacuum siamna atana plastic part hmante hian geometry leh dimensional accuracy atana thil tul khauh lutuk an nei tur a ni lo.

Forming process chhung hian plastic sheet lum tak chu unconstrained stretching state-ah a awm a, chu chuan sagging a thlen thei a ni. Demolding hnua cooling leh shrinkage nasa tak nen a inzawm chuan, temperature leh environment inthlak danglamna avang hian product dimension leh shape hnuhnung ber chu a nghet lo thei a ni. Hemi avang hian thermoformed plastic parts te hi precision molding application atan a tha lo hle.

2. Ratio siam rawh

Draw ratio, chu chu part san zawng (or depth) leh a zau zawng (or diameter) ratio a ni a, a tam zawkah chuan forming process harsatna chu a tichiang a ni. Draw ratio a lian poh leh molding process a harsa zual a, duh loh zawng, wrinkling emaw cracking emaw ang chi a awm theihna a sang zawk bawk. Draw ratio tam lutuk hian a part chakna leh a nghet lohna nasa takin a ti tlem a ni. Chuvangin, actual production-ah chuan maximum draw ratio hnuai lam range hman a ni tlangpui a, a tlangpuiin 0.5 leh 1 inkar a ni.

Draw ratio hi a part wall thickness tlem ber nen a inzawm tlat a ni. Draw ratio tlem zawk chuan wall thick zawk a siam thei a, thin sheet siamna atan a tha a, draw ratio lian zawk chuan wall thickness a thin lutuk loh nan sheet thick zawk a mamawh bawk. Tin, draw ratio hi mold draft angle leh plastic material stretchability nen pawh a inzawm bawk. Product quality a awm theih nan scrap rate tihsan loh nan draw ratio control tur a ni.

3. Fillet Design siam dan tur

Plastic parts kil khatah emaw, kil khatah emaw, a sir na tak (sharp corner) design tur a ni lo. Chu ai chuan fillet lian thei ang ber hman tur a ni a, a corner radius chu a tlangpuiin sheet thickness aiin a let 4 atanga 5 aia tlem lo tur a ni. Chutianga tih loh chuan material chu a thinning thei a, stress concentration a thlen thei a, chu chuan part chakna leh durability chu a tichhe thei a ni.

4. Angle siam dan tur

Thermoforming hmanga siam a ni mold, mold pangngai ang chi te hian demolding awlsam zawk nan draft angle engemaw zat an mamawh a ni. Draft angle hi a tlangpuiin 1° atanga 4° inkar a ni. Hmeichhe mold tan chuan draft angle te zawk hman theih a ni a, plastic part a shrinkage hian clearance engemaw zat a pe belh a, demolding a awlsam phah a ni.

5. Reinforcement Rib Design siam a ni

Thermoformed plastic sheet hi a tlangpuiin a thim hle a, a siam dan pawh draw ratio vangin a tlem hle. Chuvangin, structurally weak area-a reinforcement ribs dah belh hi rigidity leh strength tihpunna atana hmanraw pawimawh tak a ni. Reinforcement ribs dah dan hi uluk taka ngaihtuah tur a ni a, chu chu a hnuai lam leh a sir lamah hmun te tak te lutuk a awm loh nan.

Chu bâkah, thermoformed shell hnuai lamah shallow grooves, pattern emaw marking emaw dah belh chuan rigidity a tipung thei a, structure chu a thlawp thei bawk. A sir lama longitudinal shallow grooves hian vertical rigidity a tipung a, transverse shallow grooves erawh chuan collapse laka invenna a tichak hle nachungin demolding a ti harsa zawk thei thung.

6. Product tihtlem (Product) tihtlem

Thermoformed hmanga siam a ni a tlangpuiin shrinkage nasa tak an tawk a, a 50% vel chu mold-a cooling laiin a thleng thin. Mould temperature a san chuan demolding hnua room temperature thlenga a lum chhoh zel chuan part chu 25% in a tlahniam leh thei a, a bak 25% chu darkar 24 chhungin a tlahniam thei bawk. Chubakah, hmeichhe mold hmanga siam thilte chu mipa mold hmanga siam aiin shrinkage rate 25% atanga 50% in a sang zawk thin. Chuvangin, design process-ah hian shrinkage ngaihtuah a pawimawh hle a, chutiang chuan final dimension-te chuan accuracy requirement a tlin theih nan.

Geometry, draw ratio, fillet radius, draft angle, reinforcement ribs, leh shrinkage te tana design optimize hian thermoformed plastic parts quality leh stability nasa takin a tichangtlung thei a ni. Heng process design elements te hian thermoformed product siam chhuah efficiency leh performance ah nghawng pawimawh tak a nei a, product te hian user mamawh a tlin theih nan a pawimawh hle.