• T45 COP1238 575mm shank adapter rock drill tools Manufacturers, T45 COP1238 575mm shank adapter rock drill tools Factory, Supply T45 COP1238 575mm shank adapter rock drill tools
  • T45 COP1238 575mm shank adapter rock drill tools Manufacturers, T45 COP1238 575mm shank adapter rock drill tools Factory, Supply T45 COP1238 575mm shank adapter rock drill tools
  • T45 COP1238 575mm shank adapter rock drill tools Manufacturers, T45 COP1238 575mm shank adapter rock drill tools Factory, Supply T45 COP1238 575mm shank adapter rock drill tools
T45 COP1238 575mm shank adapter rock drill tools
  • Gaea
  • China
  • 5 days
  • 1000pcs/month

Gaea rock is the professional shank adapter manufacturer.
including Atlas,sandvik,fukukawa,and so on.threaded including T38 T45 T51

T45 COP1238 575mm shank adapter rock drill tools

This is the specification:

 rock drill bits


Background technique:

 

The shank adapter is the transmission connection part between the rock drill and the threaded rock drill rod (drill rod), English shank\shank adapter. It is also one of the consumables scrapped at the rock drilling site. At present, the basic manufacturing process of shank adapter at home and abroad is divided into bar direct processing method and forging processing method.

 rock drilling tools

Drilling tool steel is divided into: medium and high carbon drill steel, such as 55SiMnMo, 40CrNiMo, etc. The heat treatment method is oil quenching or air cooling after heating. Low-carbon drill steels, such as 23CrNi3Mo (EN40B), 25Cr3MnMo (SANBAR 23), 22SiMnCr2NiMo (FF710), etc., are heat treated by oil quenching after carburizing or air cooling after carburizing.

 

A: The processing steps of the bar direct processing method are:

 

a: select the corresponding drill steel; b: select the appropriate diameter and length specification; c: the shape of the machined drill shank (including splines and threads); d: select the corresponding heat treatment process according to the drill steel; e : Shot blasting and straightening treatment; f: Use cylindrical grinder to grind the middle part of the shank to the size of the drawing, (grind both ends of the plane); g: pass the inspection, apply anti-rust oil, and pack into the finished product warehouse.

 shank adaptor

B: The forging process steps are: a: select the corresponding drill steel; b: the appropriate weight of the blank; c: the shape of the forged shank and annealing treatment; d: the shape of the machined shank (including splines and threads) ; E: Select the corresponding heat treatment process according to the steel of the drill tool; f: shot blasting and straightening treatment; g: on the cylindrical grinder, grinding the middle part of the drill tail to the drawing size, (grinding the two ends of the plane); h: inspection Qualified, apply anti-rust oil, package into finished product warehouse.

 

The characteristics of the production process of these processing methods are: A, steel machining is completed (length, thread, spline); B, overall heat treatment in the heat treatment furnace; C, after heat treatment, shot blasting, straightening, and grinding; D, final inspection Qualified, coated with anti-rust oil, packed into finished product warehouse.

 rock drill bits

The disadvantages of these processing methods are: 1. Treat the shank as an integral part; 2. The length and thread type of the shank adapter must be determined before heat treatment, and cannot be changed after heat treatment. The product production process is too rigid and lacks flexibility; 3. The use of shank adapter is scrapped and damaged, 85% of which occurs at the threaded end. Take the common HL710 rock drill T45-600 shank adapter as an example, the length of the vulnerable part of the threaded end is about 120, accounting for 20% of the total length. It can be seen that 80% of the length of the shank adapter is over-processed by heat treatment, and comprehensively, at least 70% of the length of the shank is over-processed by heat treatment.

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