Recently, in the event of a car accident in the car in the field, how to open the door underwater and break the glass of the car has become a topic of concern to many car owners in the city. Nankai District, a sales staff of a car shop, the shop has 10 safety hammer, put it for more than a year no one to buy, these two days sold out. A car owner said: "The safety hammer is less than 20 yuan, and some also have a flashlight function, to buy a prepared."
In a large supermarket in the Hexi District, management officials said that recently, many people came to buy nylon ropes, rain boots, and inflatable cushions. Some outdoor products have been sold out and are waiting for replenishment. Sales staff introduced an inflated swim ring in the store. The user opened the air valve and used the mouth to blow for 3 minutes, which attracted many young people to purchase.
At the same time, Jingdong Mall launched the “Storm of Storms, Preparedness†convenience topic, Dangdang, Taobao, QQ online shopping and other shopping sites also launched related areas, outdoor first aid supplies, high-calorie ready-to-eat food, umbrellas rain gear, disinfection wipes and other commodities are online sell like hot cakes. According to statistics from Jingdong Mall, its orders for outdoor life-saving supplies have increased substantially. Only the sales of life-saving hammers have increased by 10 times compared with the usual days, and the purchase volume of Tianjin Internet users has also increased by nearly 10 times.
Nankai District, a large-scale integrated shopping mall management staff said that with the increase in public awareness of safety, shopping malls will increase the amount of safety supplies purchases, seize the opportunity to focus on display and sales of such goods to meet the needs of the public.
Cold drawn steel bar is produced by Hot Rolled Steel Bar or wire rod to get smooth surface, more precision size, higher mechanical properties, which improves machining characteristics. It can also get various sections and sizes. So cold drawn steel bar is a better choice for machining users.
For high carbon steel or alloy steel bars, to avoid the cracks in inner or surface, the bars are usually required to be annealed before cold drawing.
To get different mechanical properties or hardness depending on final usage, the cold drawn bars will also be heat treated such as annealed, normalized or quenched and tempered(Q&T).
For CNC machines usage, to get much more precision sizes or much more better surface roughness for chrome plating, the cold drawn steel bars can also be centerless ground or polished.
We have more advantages on producing cold drawn steel bars:
1) Big stocks of hot rolled round bars or wire rods as raw materials
2) Wide range of cold drawn steel bar sizes: from 10mm to 150mm
3) Different cold drawing medias powder or oil to get different surface
4) Straightening machines to get better straightness up to 0.5mm/m
5) Grinding and polishing machines to get better roughness upto 0.4um
6) Heat treating furnaces to adjust the mechanical properties
7) Full sets of testing equipment to test the sizes, mechanical properties and microstructure.
8) Multiple packages to avoid broken packages and anti-rusty
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