Product Description chungchang
Three-layer density board composite hi kawngkhar frame siamna atana ruahman bik, structured, multi{1}}layer material a ni. Density board ṭhatna (eg, stability, machinability) te chu a inzawm khawm a, chutih rualin single-layer board-a tihkhawtlai (eg, moisture resistance tha lo, chakna tling lo) te chu a hmachhawn bawk. A hnuaia tarlan te hi a layer structure, core characteristics, manufacturing process, application advantages leh ngaihtuah tur te chipchiar taka tarlan a ni.
1. Core Layer siam dan tur
Composite hi functional layer pathum atanga siam a ni a, door frame performance tihchangtlunna kawngah chanvo hrang hrang nei vek a ni. Layer te hi interlayer inzawmna a awm theih nan high-strength, moisture-resistant adhesives (eg, melamine urea-formaldehyde resin, polyurethane adhesive) hmangin an inzawm khawm a ni.
2. Thiltihtheihna pawimawh tak tak
He composite material hi kawngkhar frame hmanna atana thil tul khauh tak takte phuhrukna tura siam a ni a, a hnuaia standout traits te hi a nei a ni:
Exceptional Dimensional Stability: Three-layer structure hian "stress balance"-a siam a, rigid surface layer leh flexible core layer te hian an thermal expansion/contraction an offset a ni. Hei hian warping, cracking, emaw twisting a ti tlem a, temperature inthlak danglam (eg, heating vents bulah) emaw humidity (eg, bathroom, kitchen)-ah pawh.
High Machinability: Layer zawng zawng (HDF, MDF, LDF) hi a texture inang vek (natural wood knots emaw grain defects emaw a awm lo). Hei hian awlsam taka drilling (hinge hole atan), routing (lock notch tan), leh cutting te a siam thei a, kawngkhar hnah leh bang te nen a inmil tawk tih a chiang.
Surface Performance tha: HDF surface layer hian porosity a nei tlem a, a texture pawh a smooth hle a, chuvang chuan decorative materials (eg, wood veneer, PVC film, paint) bonding atan a tha hle. Fasteners (screw, nail) te pawh a vawng tha hle a, hun kal zelah hinge emaw kawngkhar stop emaw a lo chhuak lo.
Cost-Effectiveness: Solid wood emaw full HDF door frame nena khaikhin chuan three{1}}layer composite hian material cost a tihhniam (inner layer-a LDF/MDF hmangin) a, chutih rualin performance tehkhin theih a vawng reng bawk. Production waste a tihhniam bawk a, uniform structure hian defective cut a tih tlem avangin.
Controlled Environmental Impact: Composite-a density board tam zawk hian formaldehyde-free emaw low-formaldehyde adhesives (E0, CARB Phase 2 ang standard nena inmil) an hmang a, hei hian hriselna atana hlauhawm lo, in chhunga hman tur (eg, residential, office kawngkhar) atan a tha hle.
3. Thil siam chhuah dan tur
Kawngkhar frame atana three-layer density board composite siam hian a inmil theih nan standardized, automated workflow a zawm a ni:
Material buatsaih dan: 1.1.
HDF (surface), MDF (core), leh LDF (back) te chu panel mamawh ang zat (door frame dimensions inmil)-ah cut rawh.
Layer tin chunglam chu sand la, burrs te chu paih chhuakin, flatness a awm theih nan (tight interlayer bonding atan a pawimawh hle).
Adhesive Coating hmanga siam a ni:
Core (MDF) leh back (LDF) layer-a bonding surface-ah chuan moisture-resistant adhesive uniform layer hmangin hnawih la. Adhesive dosage hi control a ni a, chu chu seepage tam lutuk (warping thlen thei) emaw bonding tling lo (delamination thlen thei) emaw a awm loh nan a ni.
Layer Lamination hmanga siam chhuah: 1.1.
Layer te chu hetiang hian stack rawh: Surface HDF → Core MDF → Back LDF (a nih loh leh double-sided hmanna atan reverse).
Panel stacked te chu hot press machine-ah press rawh: pressure (10–15 MPa) leh temperature (120–150℃) minute 5–10 chhung dah la, adhesive chu curre la, layer te chu solid board pakhatah bond rawh.
Post-Processing tih dan tur:
Laminated board chu kawngkhar frame size dik takah trim rawh (eg, standard interior door frame tan 80mm width).
CNC machine hmangin groove (door seal atan) leh holes (hinge/lock atan) te chu precision atan route emaw mill emaw rawh.
A sir leh a chunglam te chu sand leh la, decorative finishing (eg, painting, veneering) atan inbuatsaih leh rawh.
Quality enfiahna: 1.1.
Delamination (layer inkara peeling), warping (maximum deviation<=1mm/m), leh surface defects (scratches, bubbles) te enfiah thin ang che. Board thiam tak takte chauhvin door frame assembly-ah an kal thin.
4. Door Frame-a hman thatna
Kawngkhar frame atana hman a nih chuan, he composite material hian traditional material-a key pain points a address a:
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