WorksheetsPLASTIC INJECTION MOULDING
Total questions: 60
Worksheet time: 30mins
apakah yang dimaksudkan dengan parting line ?
garis pemisah pada bahagian plastik
garisan lubang tembus
garisan lebihan plastik
garisan unjuran
In which part of injection moulding machine plastic material por first ?
Barrel
Heater
Screw
Hopper
How is injection moulding mould cooled normally ?
By oil
By air
By water
By Ice
How does the piston in the clamping unit move ?
Hydraulic energy
Pneumatic energy
Heat energy
Solar energy
Where does heater used in injection moulding machine ?
Inside barrel
On barrel
On screw
Inside screw
What is called male part of mould ?
Cavity
Core
Impression
gate
Where is register ring mount on mould ?
On the mouth of sprue bush
Inside sprue bush
Along with gate
Along with cavity
Which plastic manufacturing process is the most common and involves forcing melted plastic into a mold cavity where the plastic then cools taking the shape of the mold.
Injection Molding
Extrusion
Blow Molding
3D Printing
Which plastic manufacturing process involves forcing melted plastic through a shaped opening in a "die" to create a continuous piece which is then often cut to length.
Injection Molding
Extrusion
Blow Molding
3D Printing
Which plastic manufacturing process is used to make plastic bottles?
Injection Molding
Extrusion
Blow Molding
3D Printing
Which "additive" plastic manufacturing process involves building an item one layer at a time and is often used to make prototypes?
Injection Molding
Extrusion
Blow Molding
3D Printing
Which type of plastic can be melted and cooled and then re-melted and reshaped into something else? Most plastics fall into this category.
Thermal underwear
Thermoplastic
Thermoset Plastic
Thermoheat Plastic
Which type of plastic goes through a chemical reaction and is unable to be heated and reshaped?
Thermal underwear
Thermoplastic
Thermoset plastic
Thermoheat
Injection molding, extrusion, and blow molding all use which type of plastic?
Thermal underwear
Thermoplastic
Thermoset Plastics
Thermoheat Plastic
Which type of plastic is resistant to heat and could be used for products that are exposed to high temperatures? This plastic can not be melted again.
Thermal underwear
Thermoplastic
Thermoset Plastic
Thermoheat Plastic
What do the three arrows on the recycle triangle symbol represent?
Recycle, Reuse, Regenerate
Regenerate, Reuse, Repeat
Recycle, Reuse, Reduce
Recycle, Replicate, Reduce
The number inside the recycle triangle indicates what?
The melting temperature
The type of plastic
The softness
The age of the plastic
What are the two main categories of plastics?
Thermoplastic and Heat-setting Plastic
Heat-melting Plastic and Thermosetting Plastic
Thermoplastic and Thermosetting Plastic
Hot-melt plastic and Thermosetting Plastic
Which category of plastic melts when you heat it?
Hot-melt Plastic
Thermoplastic
Thermosetting Plastic
Heat-melt Plastic
An ice cube in a hot frying pan best describes which type of plastic?
Thermoplastic
Thermosetting Plastic
Heat-melt Plastic
Hot-melt Plastic
Which category of plastic does not melt when you heat it?
Thermoplastic
Thermosetting Plastic
Heat-setting Plastic
Hot-melt Plastic
Which plastic process blows air into a melted plastic tube ans is used to make plastic bottles?
Extrusion
Injection Molding
Blow Molding
Blown Film
Which plastic process continuously compresses melted plastic through an opening (called a die) to create a long plastic piece that can then be cut to length?
Extrusion
Injection Molding
Blow Molding
Blown Film
Which plastic process blows air into a melted plastic tube and is used to make plastic bags?
Extrusion
Injection Molding
Blow Molding
Blown Film
Which process is used to make eyeglass frames?
Extrusion
Injection Molding
Blown Film
Blow Molding
Which plastic process is used to make plastic bags?
Injection Molding
Extrusion
Blow Molding
Blown Film
Injection molded "preforms" are used to make what?
Plastic water and soda bottles
Plastic bags
Plastic plates
Plastic tennis shoes
Why Mold cooling is provided
to get constant mold temparature
Reduce cycle time
avoid defects
All the above
water tanks are made by -------------- process
Injection Molding
compression molding
Rotational Molding
Blow molding
What is the largest market for plastics today?
Baby toys
Disposable crockery and utensils
Packaging materials
Garbage bags
Which are the correct properties of plastic?
Corrosive, waterproof, lightweight, cheap
Corrosive, waterproof, lightweight, expensive
Unreactive, waterproof, lightweight, cheap
Unreactive, waterproof, lightweight, expensive
Which of the following is not a plastic?
Printer ink
Nylon
Styrofoam
Vinyl flooring
Plastics can be divided into 2 main categories: Thermoset plastics and Thermoplastics. One reason thermoplastics are better for the environment is that....
They are naturally found in nature
They are completely non-toxic
They are made from biodegradable elements
They can easily be melted, remolded and recycled
What do these symbols indicate?
The number of times a plastic has already been recycled
The number of times a plastic can be recycled in the future
The type of plastic used
The country where the plastic was made
Where can you find these symbols?
On various plastic containers and packaging
Only on recyclable plastic items
On items made from recycled plastic
On recycling bins
Disposable plastic water bottles fall into the first category. This is the easiest type of plastic to recycle, but...
It is permeable to carbon dioxide
It readily reacts with most acids
It is difficult to shape after recycling
It can be harmful to health if reused or drinks are left in it for a long time
Which plastic numbers are not easily recyclable?
1, 5
4, 2
3, 6
None, all plastics can be recycled
Polyester is a type of plastic which is often combined with cotton to make clothing. Advantages of this are that...
It makes the fabric fire-resistant
It gives the fabric a softer feel
It makes the fabric more wrinkle- and tear-resistant
it makes it easier to dye the fabric
The following are the plastic moulding processes, EXCEPT
Stretch Blow
Cast
Injection
Compression
Which are NOT the starting form of plastics for the molding process.
Powder
Pallets
Liquid
sheet
The 2 principal components of an injection moulding machine are...
Injection unit and the Mold Clamping unit
Injection unit and the Blowing unit
Compression unit and the Blowing unit
Injection unit and the Compression unit
Figure shows a section of a Injection Molding Machine. Name the "?" part.
Compression unit
Mold Unit
Ejection Unit
Heating Unit
Which of the following is not the Mould distribution channel.
Sprue
Gate
Runner
Vent
What is the name of the process?
(1)injection molding of parison;
(2) stretching;
(3) blowing.
Injection blow molding
Stretch blow molding
Injection blow Molding
Rotaional Molding
The following are the benefits of Compression Moulding, EXCEPT,
Low Cost
Little Waste
Produce Large Parts
High Production Rate
transparent
not transparent
not flexible
flexible
strong
weak
weak
strong
transparent
not transparent
not flexible
flexible
apakah yang dimaksudkan dengan injection ?
proses penyejukan melibatkan plastik di dalam acuan
proses penyuntikan resin kedalam mould melalui nozzle
proses pengeluaran produk akhir pada mould
proses cycle time pada mesin injection mould
apakah yang dimaksudkan dengan cooling proses ?
proses penyejukan melibatkan plastik di dalam acuan
proses perlentingan produk di dalam mould
proses pemanasan resin cair di dalam nozzle
proses pengeluaran produk akhir di dalam mould
apakah yang dimaksudkan dengan ejection ?
proses perlentingan keluar produk plastik pada mould
proses dimana resin dibiarkan sejuk dalam mould
proses memenuhi rongga acuan dengan resin panas
proses pematahan sprue pada produk plastik
apakah yang dimaksudkan dengan proses flow ?
proses keseluruhan injection moulding
proses delay time sewaktu penyejukkan acuan plastik
proses bottle neck yang membuatkan proses lambat
proses mengikat acuan mould pada mesin injection
apakah dimaksudkan dengan Lead time ?
Proses dimana berlakunya keseluruhan proses injection moulding
pengiraan waktu proses pengeluaran hingga ke pelanggan
pengiraan shrinkage dan back pressure pada mesin
proses membaik pulih kerosakan yang berlaku pada mesin
apakah yang dimaksudkan dengan product drawing ?
Lukisan pengeluaran pembuatan,pemasangan dan produk
lukisan assembly bukaan mould
lukisan sudut unjuran pertama dan ketiga
lukisan product akhir pembuatan mould
Apakah yang dimaksudkan dengan company regulation ?
peraturan dan undang-undang syarikat
keselamatan dan kebajikan pekerja
pengeluaran bahan sehingga ke pelanggan
pemantauan pemeriksaan kerosakan pada mesin
apakah kegunaan Tie bars pada mesin injection moulding ?
meluruskan plate dan kemudian menyokong acuan
menyediakan pembentukan dan pelepasan bahagian mould
menunjukkan ukuran pukulan berdasarkan kedudukan skru
mengawal bekalan dan suhu penyejuk ke acuan
apakah kegunaan heater band ?
mengandungi skru dan di mana plastik dicairkan
memanaskan barrel dan simpan pada suhu yang sesuai
plastik disimpan di hopper kemudian dimasukkan ke dalam barrel
mengawal bekalan dan suhu penyejuk ke acuan
