Xinhua News Agency, Canberra, September 16 (Reporter Bai Xu) A new study released by the Commonwealth Scientific and Industrial Research Organization of Australia shows that the more turtles ingest plastics, the higher the risk of death, and the pollution of marine plastics is threatening the survival of turtles.
Previous studies have found that seven species of sea turtles around the world have swallowed plastics. It is estimated that 52% of the world's turtles have swallowed plastic. But scientists still don't know whether swallowing plastic is the main cause of turtle death.
Researchers from the Commonwealth Scientific and plastic pallet mould Industrial Research Institute of Australia dissected 1,000 dead sea turtles that had been washed onto Australian beaches and quantified the relationship between turtle death and swallowing plastics. The results show that once the turtles swallow 14 plastics, the risk of death can reach 50%.
The researchers said that this does not mean that turtles will not die if they eat less than 14 pieces of plastic. In the study, some dead sea turtles only swallowed a piece of plastic. One of the turtles died in the intestines and was pierced by hard plastic. The other died of swallowing soft plastics and causing intestinal obstruction.
Chris Wilcox, chief scientist of the Commonwealth Scientific and Industrial Research Organization, said: "We found that when turtles eat the first piece of plastic, the risk of death can reach 22%. As they eat more plastic, The risk of death has also increased."
The researchers found that some turtles swallowed hundreds of plastics, and the turtles found traces of film, rope, fishing lines, stickers, soft plastics and other debris.
“There are millions of tons of plastic debris flowing into the ocean every year,” Wilcox said. “This study helps us understand how plastic pollution affects marine species so that we can better develop solutions.”
Related research has been published in the new issue of the British "Nature"
Plastic injection mold and molding industry is not known by many people, especially who is not in this industry. It is not easy to understand and very professional. But you know, it is widely used for many products and many industries.Almost all of plastic products or parts should be made by molding, just different processing as per the different design. Such as: injection, blow molding,rotational,extruding,rotocasting,etc.Of course, the most widely used is injection molding.But as a green hand in this industry, when you come up with new projects which requires plastic injection molding, what should you do? As a sales in this industry for more than 6 years, Below are some guidelines for you:
1,About the design or samples or prototypes.
If you need a quote, the manufacturer must ask whether you have 3D drawings or ready or samples available? Without a 3d drawing or sample or prototype, theplastic pet mold manufacturer won't give quote to you, not because they have a bad attitude, but because even they give you a quote, it should not be precised, and they can not go to the next. It also shows you are not actually working seriously on it. So when you want a quote, the first step is to have the design or sample or prototype on hand. For the 3D, to save cost, you may pay a university student in engineering major, even he/she may make some mistakes that the design is not tool-ready. But no problem, the manufacturer can tell you where is wrong, and can give you a quote based on tool-ready solution. If you place the order to them finally, they can modify the design to be tool-ready for free. If you just want to copy or make a similar part from existing market, you can buy a sample and send it to the manufacturer, let them know where you want to change, and then the manufacturer can quote. If it is a new part or product, if you can have the prototype made, you can also send the prototype to the manufacturer to quote.
2,About the quote elements:
1) cavities: this is the most basic element for a mold quote. If the part is not very big, usually the manufacturer will ask you how many cavities you want for the mold? If you want 2 cavities, that means you can get 2 pieces from the mold one time. The more cavities, the bigger the mold should be, and of course the mold cost is the more expensive.But on the opposite, the more cavities the mold, the more pieces you can get per shot(=one time), that means the production speed is higher, the per piece cost for production is less. Oh my, too complicated, I'm stupid about it, what should I do? No worries, I can tell you an easy solution: You can just tell the manufacturer how many pcs of the product you need per year and in the future. Then the manufacturer can calculate how many cavities is the best to save cost for you, and provide the quotation to you.
2) mold material
Mold material is also a big price driver. A mold price can vary from 2000-10000USD if you tell no background to the manufacturer. Of course, we know mold material are usually steel or Aluminum. But there are so many different types of steel. The most common used are: 45#,50#, P20,718, 718H,S136, NAK80,etc. So when you need a quote, you need to know the mold material. If you are not sure, tell you another secret: also tell them how many pcs of the product you need per year and in the future. Then the manufacturer can know how long the mold life should be, and find the most cost-effective way for you.
3) Part material
Part material means the raw material of the part or product=what raw material the part should be made of? Maybe you say plastic. Yes, of course, plastic injection molder only do with plastic, but maybe you don't know there are so many different types of plastic. The most common used are PP, PS, PC,Acrylic/PMMA PVC, PU, PET, HDPE,LDPE( just to name some of them). I don't know. Tell you a third secret: you just need to tell the manufacturer what the part is used for(=the application) and the color you want, then the manufacturer can recommend the material for you.
In addition, the part material also have something to do with the mold material. If the part material should be transparent, the mold material should be better, and the mold surface should be mirror-grade, such as S136H,NAK80,etc.
With the above elements,you can at least get an estimated mold and unit price cost from the manufacturer.
You know Indian politics is right now like a furniture.
A chair (kursi) - that is the status in politics is like a real chair now which can be made up of different materials.
For the Congress, India is like a wooden chair. Congress acts like termite which is eating the wood bit by bit. At a slow pace it is extracting all the nutrients of the wood, eating and digesting it and what will remain at the end is just wood powder which can be blown away by wind.
On the other hand the AAP treats politics as a plastic chair. New, fashionable, with different colours, available in different varieties. Something plastic chair mould new to offer and thereby selling well. However, plastic does not last long. It is fancy but its a use and throw product. Use it for some years and look for new. You don't like the colour, discard the old one and buy new.
Lastly the BJP. It treats people as Metal. May be mold manufacturer Wrought Iron or Copper. The chair is sturdy, lasts long and can take great pressures. Difficult to break or mouldyet stubborn. However, some corrosion may exist like rust which can be overcome by polishing or periodic greasing and lubricating. This will maintain the shine for ever and very inexpensive servicing cost the chair will last for a very long time.
Now we have to decide which chair we want. Where do we want to sit. On wooden chair, plastic chair or the metal chair.
The answer is obvious. However think before you vote.