Cleachd dà reactors ann an co-shìnte no sreath

There are two templates on the inneal cumadh stealladh, chan eil aon a 'gluasad, ris an canar an teamplaid stèidhichte; faodar am fear eile a ghluasad, ris an canar an teamplaid gluasadach. Tha am molltair air a shuidheachadh air an dà theamplaid le sgriothan agus le bhith a’ brùthadh lannan fa leth. Nuair a thèid am molltair fhosgladh, bidh an teamplaid gluasadach den inneal cumadh stealladh a’ gluasad, mar sin a’ draibheadh ​​am molltair gu fosgladh.

Às deidh an molltair is manufactured, it is necessary to carry out injection molding, put on the injection molding machine, and start to produce products. Ach, there are many models of injection molding machines, and each injection molding machine has its own parameters. The design mold must be able to meet the requirements of the injection molding machine model provided by the customer, otherwise it will not be able to produce. Gu

There are many design parameters den inneal cumadh stealladh. The following will focus on several parameters related to the mold. I hope that readers will pay attention to the specific design of the mold. Gu

1. Injection volume
The injection volume is the maximum mass value (or volume value) that the injection molding machine can shoot at one time during production, and represents the maximum injection capacity of this type of injection molding machine. The amount of melt used in the designed mold is less than the injection volume of the injection molding machine. Otherwise, the product is dissatisfied and cannot be produced. Gu

2. Forsa clampaidh
What happened was the pressing force of the injection molding machine on the template when the mold was closed. The clamping force required for the molded product during molding must be less than the rated clamping force of the selected injection molding machine. Otherwise, the molten glue will easily run off the parting surface, resulting in flash.

3. Tie rod spacing
There are four tie rods in the dead corners of the fixed template and the movable template of the injection molding machine. Their function is to ensure that the injection molding machine has sufficient strength and rigidity, and at the same time is responsible for the sliding template. Ach, it tends to limit the overall dimensions of the mold, because the mold is hoisted in from the middle of the tie rod during installation. Gu

The dimensions of the mold cannot be larger than the distance between the tie rods. If the length of the mold exceeds the distance between the tie rods, check whether the mold is hoisted into the rod workshop by rotating. If the rotary hoisting cannot be carried out, then the mold size can only be changed. , Or replace the injection molding machine. Gu

4. Nozzle size check
The nozzle head of the injection molding machine is generally spherical. When selecting the sprue sleeve, the spherical radius of the sprue sleeve should be consistent with the spherical radius of the nozzle. In order to prevent the high-pressure melt from overflowing from the contact gap between the nozzle and the sprue sleeve, the spherical radius of the sprue sleeve should generally be larger than the nozzle radius. Aig an aon àm, the size of the small end of the main runner should also be slightly larger than the size of the nozzle hole. Easy to align the muzzle

The design of the gating system is an important part of the design of the injection mold. It has a direct impact on the injection molding cycle and the quality of the plastic parts (such as appearance, physical properties, cruinneas meud, msaa.).

The following principles must be followed when designing
(1) The cavity layout and gate opening position should be symmetrical to prevent the mold from being subjected to unbalanced load and causing flashing.
(2) The arrangement of cavities and gates should reduce the overall dimensions of the mold as much as possible.
(3) The system flow channel should be as short as possible, and the cross-sectional size should be appropriate (too small, the pressure and heat loss will be large, and too large, the plastic consumption will be large); minimize the bending, and the surface roughness should be low to make the heat and pressure loss As small as possible.
(4) For multiple cavities, the plastic melt should enter the depths and corners of each cavity at the same time as much as possible, tha cuairteachadh teas an sgriubha fhathast èideadh, the runners should be arranged in a balanced manner as much as possible
(5) On the premise that the cavity is full, the volume of the pouring system should be as small as possible to reduce the consumption of plastic.
(6) The gate position should be appropriate, try to avoid impacting the insert and the small core to prevent the core from deforming. The residual marks of the gate should not affect the appearance of the plastic part.

Five hazards of high temperature of inneal cumadh stealladh
Is e na còig prìomh chunnartan a thaobh àrdachadh teòthachd ro àrd an inneal cumadh stealladh: deformation teirmeach air an inneal, lùghdachadh ann an slaodachd ola, deformation de ròin rubair, oxidation ola luathaichte agus crìonadh, agus lughdaich cuideam co-phàirt adhair.

Aon de na cunnartan: deformation teirmeach air an inneal
The moving parts with different coefficients of thermal expansion in the hydraulic components are stuck due to their smaller fits, ag adhbhrachadh malfunctions, a’ toirt buaidh air cruinneas tar-chuir an t-siostam uisgeachaidh, agus a 'crìonadh càileachd obrach nam pàirtean.

Dochair dhà: lughdaich slaodachd na h-ola
Bidh cus àrdachadh ann an teòthachd an inneal cumadh in-stealladh ag adhbhrachadh slaodachd na h-ola a dhol sìos, meudachadh air an aodion, agus thèid èifeachdas tomhas-lìonaidh a’ phump agus èifeachdas an t-siostam gu lèir a lughdachadh gu mòr. Mar a bhios slaodachd na h-ola a’ dol sìos, bidh film ola a 'bhalbhaid sleamhnachaidh agus pàirtean gluasadach eile a' fàs nas taine agus nas giorra, and the friction resistance increases, mar thoradh air barrachd caitheamh.

Cunnart 3: Deformation de ròin rubair
Bidh cus àrdachadh ann an teòthachd an inneal cumadh stealladh a’ deformachadh nan ròin rubair, luathaich an teip a tha a’ fàs nas sine, lughdaich coileanadh seulachaidh agus beatha seirbheis, agus ag adhbhrachadh aoidionachd.

Cunnart 4: Luathaich oxidation agus crìonadh ola
Bidh cus àrdachadh ann an teòthachd an inneal cumadh in-stealladh a’ luathachadh oxidachadh agus crìonadh na h-ola, cuir às do stuthan bituminous, agus lughdaich beatha seirbheis na h-ola hydraulic. Bidh na precipitates a’ bacadh an orifice taise agus am port bhalbhaichean slit, ag adhbhrachadh gum bi a 'bhalbhaid cuideam a' dol an sàs agus gun chomas gluasad, agus tha am pìob meatailt air a shìneadh agus air a chromadh, no eadhon briste.

Cunnart 5: A 'leantainn gu droch chàileachd obrach de phàirtean
Excessive temperature rise of the inneal cumadh stealladh will result in poor working quality of the parts, and the dissolved air in the oil will escape, mar thoradh air sin pòcaidean adhair, a lughdaicheas coileanadh obrach an t-siostam uisgeachaidh. Bu chòir an teòthachd obrach as fheàrr den t-siostam uisgeachaidh a bhith eadar 45 ìrean agus 50 ceuman. Is e an adhbhar gu bheil an siostam uisgeachaidh air a dhealbhadh a rèir slaodachd ola cuideam taghte, ach atharraichidh an slaodachd le teòthachd na h-ola, a bheir buaidh air an obair san t-siostam. Co-phàirtean, leithid siolandairean ola, bhalbhaichean uisgeach, msaa., lughdaich cruinneas smachd agus cugallachd freagairt, gu sònraichte airson innealan stealladh mionaideach.

Aig an aon àm, if the teòthachd tha ro àrd, luathaichidh e aois an ròin agus bheir e air cruadhachadh agus sgàineadh; ma tha an teòthachd ro ìosal, thèid an lùth giollachd a chaitheamh agus thèid an astar obrachaidh a lughdachadh. Mar sin, feumar aire mhionaideach a thoirt do theodhachd obrach ola uisgeachaidh. Tha iomadh adhbhar ann airson teòthachd àrd na h-ola, ach tha a 'mhòr-chuid dhiubh mar thoradh air fàilligeadh a' chuairt ola no fàilligeadh an t-siostam fuarachaidh.

Ma tha ceist sam bith agad air cumadh stealladh ,plz a ’faireachdainn an-asgaidh faighneachd Sgioba FLYSE,bheir sinn an t-seirbheis as fheàrr dhut！