Product Overview

This W-type core drill segment mould is specially designed for segmented hot pressing of core drill bits, optimized for harsh conditions like high-strength concrete drilling and quartz stone deep processing. The W-shaped groove composite structure enhances chip evacuation and impact resistance, meeting precision drilling requirements for high-hardness materials, suitable for large-scale production of thin-walled drills with diameters of 30-250mm.

Product Features

W-shaped Bionic Flow Structure：The segment cross-section features a double V-shaped nested design, forming a 3D spiral flow channel for chips, increasing debris discharge speed by 70% compared to traditional U-type structures, and improving coolant penetration by 55% to effectively reduce drill temperature rise.

Gradient Wear-resistant Composite Layer：The working surface is sintered with YG10X cemented carbide and nickel-based superalloy in gradient, and the matrix uses 38CrMoAl nitrided steel with surface hardness up to HV1300, capable of withstanding 120MPa impact load, extending segment life by 3 times.

Intelligent Temperature Control Forming System：Equipped with four-channel ceramic heating rods and micro-circulation water cooling device, achieving precise temperature control within ±2℃ in the range of 280-680℃ via PID adaptive algorithm, with 胎体 density uniformity deviation ≤1.5% after hot pressing.

Quick-change Modular Design：Adopting a card slot cavity and hydraulic positioning system, reducing single W-type cavity replacement time to 5 minutes, supporting 0.5mm-level groove depth adjustment, and adapting to fast switching production of multiple W-type segment specifications.

Technical Parameters

Applicable Drill Diameter：30mm-250mm (special for thin-walled drills)

Mould Working Temperature：Room temperature-680℃ (five-stage intelligent temperature control)

Hot Pressing Pressure：0-110 tons (servo hydraulic closed-loop control, pressure fluctuation ≤±1%)

Mould Size：Standard type 600mm×450mm×380mm (customizable)

Material Combination：Cavity (YG15 cemented carbide insert + TiCN coating) + Matrix (38CrMoAl nitrided steel)

Application Areas

Construction Engineering：Production of high-strength concrete shear wall ventilation holes and metro tunnel pipeline hole drill bits;

Stone Deep Processing：Manufacturing of special drill bits for complex hole shapes (such as oval holes, waist-shaped holes) in quartz stone countertops;

Industrial Manufacturing：Forming of high-precision drilling tools for ceramic plates and fiberglass composite materials;

Geological Exploration：High-strength segmented hot pressing of deep core sampling drill bits.

Customization Services

Customizable W-groove angle (60°-120°) and groove depth (5mm-20mm);

Support for diamond concentration gradient distribution customization (-40% gradient) to adapt to different material hardness;

Development of multi-station linkage moulds for one-time hot pressing of 8-10 W-type segment sections.

Quality Assurance

Complies with ISO 9001:2015 quality management system, each mould undergoes 300 hours of continuous hot pressing cycle testing;

Three-coordinate measuring instrument detects 3D profile of W-groove, with dimensional tolerance controlled within ±0.03mm;

12-month warranty provided, free replacement of cavity inserts for non-human damage, and lifelong 20% discount on wearing parts replacement.