BQ NQ HQ PQ Wireline Drilling Rods With Heat Treatment 30 CrMnSiA

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2021年12月05日

DTH Drill Rods And RC Drill Rods

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BQ NQ HQ PQ Wireline Drilling Rods With Heat Treatment 30 CrMnSiA 


Characteristic: 

1. With highly and strength of resistance on the bending, welding fixed. 

2. Highly efficiency on production and steady quality 

3. It able to keep the hole straight and with long use time.  

 

Specifications :

1. Available in all standard drilling sizes (A, B, N, H and P)

2. Heat treated and anti-rust coating process

3. High straightness and concentricity

4. “Q” series and “TW” (Thin Wall) series, 1.5m and 3m length.

5. Top-quality Chinese origin or Canadian sourced

 

 

Raw materials:

Roschen only choose the best steel tubes in the market to manufacture our rods and pipes.


Spot check will be conducted after the steel tubes delivered to company. We will make sure the compositions and specifications match the inspection report form the suppliers.

 


Heat treatment control:


Heat treatment will greatly improve the material strength and increase the thread wear life of the rods and casings. We conduct either tru-wall or both ends heat treatment to the tube body. After heat treatment, strength, hardness, straightness and concentricity of the treated tubes will be tested in our lab.

 

Thread opening process:

Accuracy of threads will determine the use effects and life time of drill rod and casings.

CNC latches and form cutter are used in thread opening processing to minimize error made by anthropic factors.  


Additional thread treatment:


Surface of the threads will be cleaned to remove burr adhered after threads are opened.

Afterwards, the tread surface will be phosphated to improve surface conditions.

 


Specification : 

DecriptionOD(mm)ID(mm)Weight(Kg/3m)
Rod, BQ 3.0 m EnhancedΦ55.60Φ4618
Rod, NQ 3.0 m EnhancedΦ70.15Φ6024
Rod, HQ 3.0 m EnhancedΦ89Φ77.8035
Rod, PQ 3.0 m EnhancedΦ114.3Φ101.652.6



Technical Parameters of Wireline Drill Rod:
No SizeDrill rod OD mmID mm
Thread typeHeat treatmentRaw materialDesigned hole depth
1S565344China standard

1000m
2 3S59 S7555.5 7146 61China standard
45MnMoB1000m 1002m
4S958979China standard

600m
5 6S75AS95A
61 79
heat treatment the Thread45MnMoB1500m 1300m
7 8 9CBH CNH CNH (T)Both side were enhanced44 61 61Factory standardHeat treatment the whole pipe30CrMnSiA XJY8502500m 2300m 3000m
10CHH
78

30CrMnSiA1800m
11CSH127114.3

S1353000m
12BQ55.646

 30CrMnSiA XJY8502000m
13NQ70.560.5DCDMAHeat treatment the whole30CrMnSiA XJY8502000m
14HQ8977.8standardpipe 30CrMnSiA XJY8501500m
15PQ114.3103.2

30CrMnSiA XJY850800m



SizeO.D.I.D.Weight/3mWeight/1.5m
(mm)(mm)(kg)(kg)
AQ43.136.1115.5
BQ55.5845.9719.059.53
NQ69.8560.4523.7711.89
HQ88.977.7234.8817.44
PQ114.3101.653.0726.54
ATW44.536.811.55.75
BTW56.6448.5115.657.83
NTW73.1564.2622.9111.46
HTW90.9381.5330.7515.38 


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