Introduction
Glass is a hard, brittle, noncrystalline substance that we use widely in our daily lives. From glass are made, for example, windows, dishes, bottles and etc.
In today's course you will learn how glass bottles are manufactured!
- Šis darbs ir par tēmu "Stikla pudeļu ražošana". Šajā darbā ietverts mācību video angļu valodā par stikla pudeļu ražošanu, pēc kura noskatīšanās jāatbild uz 10 jautājumiem par attiecīgo tēmu. Izvērtējot iegūtos rezultātus, iespējams secināt šīs tēmas atbilstošo apguvi.
Task
Your first task is to watch a video about how glass bottles are manufactured! After watching the video your second task is to answer 10 questions about the topic!
You can find the video here -
!
Process
Now that you have watched the video, answer the following 10 questions!
1. How many stages are mentioned in the video?
2. What are the first 3 mentioned benefits of glass packaging?
3. Name major raw materials used in glass production!
4. What is cullet?
5. What is melted to produce glass?
6. Name the approximate temperature that is generated in the furnace!
7. What happens at the end of Stage 4?
8. What does forming machine use?
9. What are the containers covered with in Stage 6?
10. Why is polymer applied to the containers in Stage 8?
Evaluation
Here are the correct answers to the 10 questions:
1. There are 9 stages mentioned in the video.
2. The first 3 mentioned benefits of glass packaging are:
- It is sustainable
- It is virtually inert
- It is 100 % recyclable
3. Major raw materials used in glass production are:
- Sand
- Limestone
- Soda ash
- Cullet
4. Cullet is recycled glass.
5. To produce glass batch is melted.
6. The approximate temperature that is generated in the furnace is 1565 degrees Celsius.
7. At the end of Stage 4 melted batch is formed into glass containers that are delivered to the forming machine.
8. The forming machine uses compressed air.
9. In Stage 6 the containers are covered with tin.
10. In Stage 8 polymer is applied to the containers because it provides them with scratch-resistant coating that will also allow them to travel along the costumers filling line without jamming.
If you got 10 correct answers then you have completely learned this course.
If you got 7-9 correct answers then you have learned this course very well with a few inaccuracies.
If you got 4-6 correct answers then you have fairly learned this course but you still need some practice.
If you got 1-3 correct answers then you have hardly learned this course and you should go through it at least one more time.
If you got 0 correct answers then you have not learned this course and you need to retake this course.
Conclusion
This is the end of today's course! Now you have learned how glass bottles are manufactured!
For those who had a hard time learning this course you can either retake this course or you can check this webpage - http://www.consol.co.za/business/why-glass/glass-manufacturing-process - where the same exact process is explained!
Thank you for your great effort and good luck in your next courses!
Credits
The definition of glass was taken from this webpage - http://www.dictionary.com/browse/glass !
The video for today's course was taken from this webpage -
!