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Lukisan acuan dan pengunduran pintu gerbang

• 2025-08-05

Lukisan acuan dan pengunduran pintu gerbang

Lukisan acuan

    Fenomena: Kedua -dua produk adalah produk bertekstur dan terdapat fenomena acuan menarik.

    Analisis: Kelajuan perlahan akan menyebabkan produk menyejukkan terlalu cepat. Kedudukan bertukar terlalu lambat.

    Ciri -ciri mesin pencetakan suntikan

    Gred: Demag (Ningbo), Pasukan Pengapit: 120T, Kapasiti Plastik: 130g.

(2) Ciri -ciri acuan

    Nombor ecect acuan: 1 × 2, kaedah suntikan gam: pintu masuk, kaedah lonjakan: lonjakan plat push, suhu acuan: 90 ° C (mesin suhu malar).

(3) Bukti Fizikal Produk

    Bahan: PC+ABC HP5004-100, Warna: Hitam, berat produk (sekeping tunggal): 3.2g, berat muncung: 13g.

(4) analisis penyebab kecacatan

    1. Saluran utama acuan panjang dan nipis. Kaedah masuk gam adalah masuk gam tenggelam. Bahan cair mengalir berhampiran salur masuk gam. Oleh kerana kelajuan perlahan, tekanan tempatan produk terlalu besar, mengakibatkan fenomena menarik acuan.

    2. Keterbatasan peralatan itu sendiri telah menyebabkan ketidakupayaan untuk memperbaiki keadaan melalui pelarasan mesin.

(5) Penangguhan

    Produk yang disahpepijat selepas menggantikan mesin Demag 100T layak, dan kelajuan suntikan mesin dapat mencapai 220mm/s.

Jadual proses pencetakan suntikan

	/	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

Kereta Mould_Taizhou Jiefeng acuan 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.

    Ciri -ciri mesin pencetakan suntikan

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

(2) Ciri -ciri acuan

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

(3) Ciri -ciri produk

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

(4) analisis penyebab kecacatan

    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) Penangguhan

    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.

Jadual proses pencetakan suntikan

	/	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

Komoditi Mould_Taizhou Jiefeng acuan co, Ltd. (jfmoulds.com)