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Gambar cetakan dan tinta gerbang

• 2025-08-05

Gambar cetakan dan tinta gerbang

Gambar cetakan

    Fenomena: Kedua produk tersebut adalah produk bertekstur dan ada fenomena penarikan cetakan.

    Analisis: Kecepatan lambat akan menyebabkan produk menjadi terlalu cepat. Posisi switching terlalu lambat.

    Karakteristik mesin cetakan injeksi

    Kelas: Demag (Ningbo), kekuatan penjepit: 120T, kapasitas plastisisasi: 130g.

(2) Karakteristik jamur

    Nomor ejeksi cetakan: 1 × 2, Metode Injeksi Lem: Gerbang Titik, Metode Ejeksi: Ejeksi Pelat Push, Suhu Cetakan: 90 ° C (Mesin Suhu Konstan).

(3) Bukti fisik produk

    Bahan: PC+ABC HP5004-100, Warna: Hitam, Berat Produk (Single Piece): 3.2g, Berat Nozzle: 13G.

(4) Analisis penyebab cacat

    1. Saluran utama cetakan panjang dan tipis. Metode inlet lem adalah inlet lem submersible. Bahan cair mengalir di dekat inlet lem. Karena kecepatan lambat, tekanan lokal produk terlalu besar, menghasilkan fenomena penarik cetakan.

    2. Keterbatasan yang melekat pada peralatan itu sendiri telah menyebabkan ketidakmampuan untuk memperbaiki situasi melalui penyesuaian mesin.

(5) Penanggulangan

    Produk yang didebug setelah mengganti mesin Demag 100T memenuhi syarat, dan kecepatan injeksi mesin dapat mencapai 220mm/s.

Tabel proses cetakan injeksi

	/	50	Holding pressure	Pressure-holding position		100	110	120	Injection pressure
	/	3	Holding pressure time	12		12			Injection pressure position
Residual amount of injection glue		/	10	/	55	3			Injection velocity
7.8		/	/	/	12	23.5			Velocity of fire position

Mould_Taizhou jiifeng Mould Co.,Ltd. (jfmoulds.com)

Mold ink flushing

    Phenomenon: Ink surges at the gate of the S10 face frame.

    Reason: During IML injection molding, the gate of the sheet material often appears transparent.

    Analysis: High speed will cause material melting, intensify shearing and generate high temperatures. The ink has poor heat resistance.

    Karakteristik mesin cetakan injeksi

    Grade: DEMAG (Ningbo), clamping force: 50T, plasticizing capacity: 42g.

(2) Karakteristik jamur

    Mold ejection number: 1×2, glue injection method: point gate, ejection method: push plate ejection, mold temperature: 70°C (constant temperature machine).

(3) Karakteristik produk

    Material: ABS PA758, Color: Transparent, Product weight (single piece) : 1.5g, sprue weight: 13g.

(4) Analisis penyebab cacat

    1.The main channel of the mold is quite large, and the glue inlet method is submersible glue inlet. When the molten material flows near the glue inlet, due to the excessive speed, it causes high shear, resulting in a rapid and instant temperature rise of the molten material.

    2. The ink is not resistant to high temperatures, resulting in ink flushing.

(5) Penanggulangan

    1.Utilize multi-level injection and position switching.

    2. In the first section, fill the flow channel to the glue inlet at a relatively fast speed and find the corresponding switching position. Then, in the second section, fill the area near the glue inlet at a slow speed and a very small position. In the third section, quickly fill 90% of the mold cavity to prevent the high-temperature molten rubber from cooling. In the fourth section, slowly fill the mold cavity. Finally, switch to the pressure-holding switching position.

Tabel proses cetakan injeksi

	/	50	Holding pressure	Pressure-holding position		100	110	120	Injection pressure
	/	3	Holding pressure time	12		12			Injection pressure position
Residual amount of injection glue		/	10	/	55	3			Injection velocity
7.8		/	/	/	12	23.5			Velocity of fire position

Komoditas mould_taichu jiifeng Mould Co.,Ltd. (jfmoulds.com)