Cold rolling ribbed steel bars

Our company is a kay enterprise engaged in manufacturing all kinds of rolls for cold rolling.All rolls feature:
1.Improved mechanical properties;
2.Good surface finish and corrosion-resistance;
3.Longer tool life and possible to 600-ton steel bars,suitable repeated use.

The main performances of the three dimensional carbide rolls for cold rolling ribbed steel bars.

Grade	Chemical composition		Mechanical properties			Physical properties
Grade	Co+Ni %	WC %	Hardness HAR	T.R.S MPa	Density g/cm³	Physical properties
YGH30	15	85	>83.5	>2520	13.8~14.2	Cold rolling of ribbed steel bars
YG15	15	85	>86.5	>2220	13.9~14.2	Cold rolling of ribbed steel bars

The three dimensional carbide roll rings for cold rolling ribbed steel bars.

Specification	External diameter (D±0.02)	Internal diameter (d±0.02)	High (H±0.02)	Specification	External diameter (D±0.02)	Internal diameter (d±0.02)	High (H±0.02)
GS123082015	123	82	15	GS150095015	150	95	15
GS125082015	125	82	15	GS150095020	150	95	20
GS128082015	128	82	15	GS150096015	150	96	15
GS130082015	130	82	15	GS150096020	150	96	20
GS130082016	130	82	16	GS180125015	180	125	15
GS138080018	138	80	18	GS180125020	180	125	20
GS138090018	138	90	18	GS205150015	205	150	15
GS145095015	145	95	15	GS205150020	205	150	20
GS145095020	145	95	20	GS220140025	220	140	25
GS147095015	147	95	15

Note:
1, The specifications in the table are recommended for use. We can also produce roll rings according to the drawings provided by customers.
2, The grooves of the roll rings can be designed and manufactured according to GB13788-2000 standard and they can also be designed based on customers’ requirements and marked in a special way.
3, We can supply compatible tool steel systems to customers for assisting them with modifying their mills and rolling process.

Application requirements of 3-dimensional cemented carbide roll rings
1, Any striking on and collision with roll rings is strictly prohibited.
2, When installing the whole assembly of roll rings, the clearance of the bearings in relation to the casings should be on the tighter side.
3, The precision of rotation of the whole assembly (circular runout and end runout) should be kept within +0.05mm.
4, The fitting in of the whole assembly and the roll rings shall be a transitional fitting in and fastened.
5, The roll rings should not be cooled by water or oil water emulsion.
6, The joints of the pipes in the internal cooling system should not be leaky and it is advisable that any internal cooling is not to be applied.

Tungsten carbide roller

Cold rolling ribbed steel bars