Users Share

★Specification of new grade JT05A for carbide button

Grade：JT05A

Breif introduce：The new grade is used the middle grain size for Germany H.C Stark company, our engineer adjusting the size of raw materials (WC powder and Co powder), improving the forming and sintering process, the cemented carbide brand JT05A with excellent performance was developed.And after the bit is made, new brand has obvious performance advantage compared with other manufacturers' brand through the site test .

JT05A Performance：

Zhuzhou Jat Cemented carbide Co., Ltd

Our button：

In accordance with the using situation：

Information on bits, equipment, conditions, etc:

Grade	Type		Test quantity	Bit Specification		Bits factory
JT05A	JQ1623-30		4 pcs	115		Hunan New Diamond Construction Machinery Co.,Ltd
-	-		-	Button Quantity		rock sort
-	-		-	Gauge button7pcs(Q1623)， Front button 6pcs(Z1419)		White and black granite are interlaced
-	-		-
Drill Truck		Caterpillar hydraulic drill machine manufacturer and model			Screw air compressor manufacturer and model		wind pressure
Crawler drill truck		Hebei Jinke Drilling Machine Co., LTD JK590			LiUTECH LUY220D-25		19bar
Drill bit specification in the construction site：type is 115，high wind pressure drill of black.
The service life for advantages and disadvantages of the drill bits used at the site: The drill bits used in the original site can drill an average of 210m in this area, and early wear, broken teeth and tooth loss are frequent.

List of results:

Result for this test	grade	Deep of Granity (m)	Driving speed (m/min)	Initial maximum pitch (mm)	Scrap maximum pitch (mm)	Gauge button loss (mm)	Initial library diameter (mm)	Scrap library diameter (mm)	Gauge button diameter (mm)	Cylindrical exposed button height (mm)	abnormal	Note
	JT05A- 200813	355	0.45	112.83	110.21	2.62	113.89	109.97	16.06	1	-	Normal scrap
	JT05A- 200724	320	0.46		109.94	2.89		107.68		1	-	Normal scrap
	JT05A- 200812	347	0.44		110.23	2.60		108.67		1	-	Normal scrap
Compared	K bits-200706	160	-	-	112.24	-	-	111.76	16.10	1	Breakage or loss button	Scrape in advance
	K bits -200705	299	0.44	-	110.80	-	-	-	16.10	1	Breakage button	Scrape
	K bits -200708	Above 300m	0.48	-	-	-	-	-	-	1	Breakage button	Scrape

Bit abrasion after use：

The data for new grade JT05A compare with famous K manufacturer in inland:

bits	Drilling machine NO.	Amount meter	abnormal	Note
JT05A bit	4	347m	-	Normal scrap
JT05A bit	5	320m	-	Normal scrap
K factory bit-200708	1	Above 300m(unknow)	Breakage of button	Scrape
K factory bit-200706	2	160	Breakage or loss button	Scrape in advance
K factory bit-200705	2	299	Breakage	Scrape

Using conclusion：

According to the construction site, the original drill bit used at the construction site can generally use around 200m, while the new drill bit can be used at least over 300m. Customers and operators are satisfied with the use of the new drill bit.

The rock strata in this site are mainly interlaced with white granite and black granite.The test bit can be used at least 300m at this site, and the design of the reservoir makes the service life of the bit relatively stable, without button breakage or button loss, which proves that the wear resistance and toughness of the test bit JT05A are applicable to the working conditions of extremely hard rocks such as granite and marble.

Zhuzhou Jat Cemented Carbide Co.,Ltd

Sep. 30^th,2020

Последняя:How to get your free samples? Следующая:Your carbide inserts haven’t excellent work performance, except the quality, maybe caused by these reasons...