Faktanya, teknik cetakan injeksi sering digunakan untuk membuat produk plastik. Ini juga menggunakan teknologi untuk membuat struktur dan ukuran plastik menjadi benda kerja, sehingga struktur dan kualitas cetakan injeksi dapat secara langsung mempengaruhi kualitas produk jadi. Apa saja permasalahan yang mudah terjadi pada pekerjaan cetakan injeksi? Mari kita lihat.
1. pengupasan sariawan yang sulit
Dalam proses pencetakan injeksi, the grid electrode of the grid electrode is glued with a sleeve, which is easy to sag. yang melekat pada bagian belakang cetakan, cracks appear and the articles are damaged. Tambahan, operators must use copper to knock from the nozzle head, which has a serious impact on the production efficiency after the release. The main cause of this kind of failure is the difference of the end-point gate of the taper hole and the circumferential direction of the hole mark. Kedua, the material is too soft, the small end of the taper hole is deformed or damaged after a period of time, and the spherical curvature of the nozzle is too small, which makes the rivet head of the grid material produced here. The processing difficulty standard of conical sprue sleeve should be adopted. For their own treatment, it should be carried out for later or special reamers. The cone is polished by Ra0.4 or more. Tambahan, the grid must be provided with a pull rod or sprue ejection mechanism.
2. guide post damage
The guide post mainly plays a guiding and educational role in the mold, so as to ensure that the forming surfaces of the core and cavity can not collide with each other in any case. The guide post design cannot be used as a force bearing part or positioning part. In the following analysis of several different cases, the moving die will produce a huge lateral horizontal offset force during injection: (1) when the wall thickness of the plastic part is required and uneven, the rate of material flow through the thick wall is large, where we generate a large pressure; (2) The side reaction of the plastic part is asymmetric, such as the development of the stepped parting surface, and the back pressure on the opposite sides of the die structure is also unequal.
3. movable formwork bending
Selama pencetakan injeksi, reverse pressure may be generated in the mold cavity, and many workers often do not pay attention to this, resulting in the finished product deviates from the expected result,
Selama injeksi, the molten plastic in the mold cavity generates a huge reverse pressure, usually 600-1000 kg / cm. Mold manufacturers sometimes do not pay attention to this problem, often change the original design size, or use low-strength steel plate to replace the movable formwork. For the top material with ejector rod on the mold, due to the large span on both sides of the valve seat, the template will bend downward during injection molding.
Ini membutuhkan akurasi simulasi yang tinggi dan tidak ada deformasi, Ltd
Dj Cetakan adalah pembuat cetakan Cina dari cetakan plastik- cetakan injeksi, cetakan die casting, cetakan tiup plastik, cetakan rotasi, medis cetakan injeksi plastik, dua tembakan cetakan injeksi plastik, masukkan cetakan, overmolding, cetakan injeksi logam, cetakan injeksi mikro, cetakan injeksi bubuk, cetakan injeksi keramik, cetakan injeksi cair, cetakan injeksi husky, cetakan rumah tangga, pengecoran cetakan, alat cetakan mati, cetakan khusus, cetakan cina, perkakas prototipe cepat rapid, perkakas prototipe plastik plastic, perkakas tekan pukulan, mati dan perkakas untuk bagian ponsel / ponsel cell, bagian otomotif, penyedot debu, alat isi ulang, telepon, mesin fotokopi, komputer, speaker multimedia, dan banyak produk elektronik dan peralatan rumah tangga lainnya. Dan juga produsen produk plastik, produsen cetakan Cina- bagian-bagian yang terbuat dari plastik, tangki air plastik, bola plastik, wadah plastik, gesper plastik, jangkar plastik, gantungan plastik, sendok plastik, pemasangan pipa plastik, gelas plastik, peralatan makan plastik, gelas plastik, botol-botol plastik, nampan plastik, wadah kosmetik plastik, kotak plastik, wadah makanan plastik, kursi plastik, tutup plastik, penutupan tutup plastik, tabung plastik, pipa air plastik, kenop plastik, tabung plastik, kotak utilitas plastik, rak plastik dan sebagainya.
Kontak:
Orang: James Yuan
Perusahaan: Huizhou Dj Moulding Company Limited
Menambahkan: Desa LongGang,Kota LongXi,Kabupaten BoLuo,Kota HuiZhou,Provinsi Guangdong, Cina
Telp: 86-752-6682869
Surel: [email protected]
Situs: https://www.jasonmolding.com/custom-injection-molding/
