Chinese Association of Idaho State University (CAISU)
Cure for brittle nylon cable ties and parts
Cure for brittle nylon cable ties and parts
Nylon cable ties and parts can become brittle and snap during installation, especially in the winter when it's cold and dry. But, rarely is defective material the cause. Instead, it's typically lack of moisture.Place the brittle parts into a Ziploc? or other airtight, plastic bag and sprinkle them with water. Let them sit for as little as 12 hours and you?ˉll be surprised at how flexible and strong they become. wire cable strap series
Most nylon ties and parts you buy from us are made from type 6/6 Nylon. Manufacturers ship the parts in heavy-wall, heat-sealed, polyethylene bags. Before the bags are sealed, they add moisture at the rate of .025 times the weight of the parts. Then, they recommend you store the bags at 73??F (?à 15??F) at 50% relative humidity.
If you open a bag of nylon parts and don?ˉt reseal it airtight, brittleness and snapping may result.Although cable ties look simple, they are actually a critically designed product, if your warehouse, factory floor, or assembly area is not kept at that temperature range or relative humidity, or. It's a product where you can insert the one end easily one way, pull it the other way and it must never loosen. For a small cable tie, which sells for around R15 for a packet of 100, you have a 110 mm strip length and at any point along this length it must hold and it must never slip. The piece of plastic inside the head is infinitely flexible in one direction, and not in the other it must lock. And along the whole length of the cable tie you need perfect 90 degree corners which must never release the strap, and then you're paying 15c per cable tie. Is it really that expensive? He notes that tolerances are very tight on a cable tie if your moulding tolerance is not perfect, the ties won?ˉt work so it's a very precise moulding procedure and a very precise tool manufacturing procedure. There are many competent people in the world, but not every toolmaker can make a competent cable tie mould,he says
HellermannTyton is the only local cable tie manufacture in South Africa, manufacturing between 50 and 60 million cable ties a month, with up to 120 tons of plastic converted into cable ties every month. The plastic we use in South Africa is a global standard for HellermannTyton worldwide. We use nylon 66, which is a common engineering plastic. It is hydroscopic, so it absorbs water; first we take all the water out of the raw material in a dryer, then injection mould it and it comes out as a cable tie. The problem then is that because it is very dry and can be quite brittle, so as we pack the cable ties we put between 1 and 2% water in the packets, which the cable ties then absorb, allowing them to cure and retain their flexibility,explains Middleton.
Nylon cable ties and parts can become brittle and snap during installation, especially in the winter when it's cold and dry. But, rarely is defective material the cause. Instead, it's typically lack of moisture.Place the brittle parts into a Ziploc? or other airtight, plastic bag and sprinkle them with water. Let them sit for as little as 12 hours and you?ˉll be surprised at how flexible and strong they become. wire cable strap series
Most nylon ties and parts you buy from us are made from type 6/6 Nylon. Manufacturers ship the parts in heavy-wall, heat-sealed, polyethylene bags. Before the bags are sealed, they add moisture at the rate of .025 times the weight of the parts. Then, they recommend you store the bags at 73??F (?à 15??F) at 50% relative humidity.
If you open a bag of nylon parts and don?ˉt reseal it airtight, brittleness and snapping may result.Although cable ties look simple, they are actually a critically designed product, if your warehouse, factory floor, or assembly area is not kept at that temperature range or relative humidity, or. It's a product where you can insert the one end easily one way, pull it the other way and it must never loosen. For a small cable tie, which sells for around R15 for a packet of 100, you have a 110 mm strip length and at any point along this length it must hold and it must never slip. The piece of plastic inside the head is infinitely flexible in one direction, and not in the other it must lock. And along the whole length of the cable tie you need perfect 90 degree corners which must never release the strap, and then you're paying 15c per cable tie. Is it really that expensive? He notes that tolerances are very tight on a cable tie if your moulding tolerance is not perfect, the ties won?ˉt work so it's a very precise moulding procedure and a very precise tool manufacturing procedure. There are many competent people in the world, but not every toolmaker can make a competent cable tie mould,he says
HellermannTyton is the only local cable tie manufacture in South Africa, manufacturing between 50 and 60 million cable ties a month, with up to 120 tons of plastic converted into cable ties every month. The plastic we use in South Africa is a global standard for HellermannTyton worldwide. We use nylon 66, which is a common engineering plastic. It is hydroscopic, so it absorbs water; first we take all the water out of the raw material in a dryer, then injection mould it and it comes out as a cable tie. The problem then is that because it is very dry and can be quite brittle, so as we pack the cable ties we put between 1 and 2% water in the packets, which the cable ties then absorb, allowing them to cure and retain their flexibility,explains Middleton.
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