Product Overview

This T-type core drill segment mould is specially designed for segmented hot pressing of core drill bits, optimized for scenarios like tile precision hole opening and marble special-shaped cutting. The T-shaped groove composite structure enhances cutting stability and chip evacuation, meeting high-precision drilling requirements for hard and brittle materials, suitable for large-scale production of thin-walled drills with diameters of 25-200mm.

Product Features

T-shaped Mechanical Support Structure：The segment cross-section features a T-shaped boss design, with horizontal flanges providing radial support and vertical webs enhancing torsional strength. The radial runout during drilling is ≤0.05mm, improving cutting stability by 40% compared to traditional structures.

Composite Wear-resistant Material System：The working surface is sintered with YG6X cemented carbide and cobalt-based binder, and the matrix uses 40CrNiMoA alloy structural steel, surface ion-nitrided to hardness HV1100, capable of withstanding 50MPa continuous cutting pressure.

Dual-cycle Temperature Control System：Equipped with spiral heating tubes and serpentine water cooling channels, achieving precise temperature control within ±3℃ in the range of 300-620℃ via PLC intelligent control, with 胎体 density uniformity deviation ≤1.8% after hot pressing.

Quick-change Cavity Design：Adopting a combination of dovetail groove and positioning pin structure, reducing single T-type cavity replacement time to 7 minutes, supporting fine adjustment of flange width (5mm-25mm) and web height (3mm-15mm).

Technical Parameters

Applicable Drill Diameter：25mm-200mm (special for thin-walled drills)

Mould Working Temperature：Room temperature-620℃ (three-stage heating)

Hot Pressing Pressure：0-70 tons (hydraulic servo control, pressure fluctuation ≤±1.5%)

Mould Size：Standard type 500mm×350mm×320mm (customizable)

Material Combination：Cavity (YG10 cemented carbide insert) + Matrix (40CrNiMoA quenched steel)

Application Areas

Building Decoration：Production of tile wall switch holes and marble countertop drain hole drill bits;

Stone Processing：Manufacturing of granite special-shaped line cutting and bathroom countertop oval hole special drill bits;

Industrial Manufacturing：Forming of high-precision positioning hole tools for fiberglass boards and ceramic substrates;

Home Improvement Industry：Bulk production of gypsum board and aluminum 扣板 ceiling ventilation hole drill bits.

Customization Services

Customizable T-type flange angle (90°-120°) and web thickness (2mm-8mm);

Support for diamond particle size grading customization (20/25 mesh-80/100 mesh) to adapt to different material cutting needs;

Development of multi-station linkage moulds for one-time hot pressing of 6-8 T-type segment sections.

Quality Assurance

Complies with ISO 9001:2015 quality management system, each mould undergoes 150 hours of continuous hot pressing testing;

Laser scanning detects T-groove profile accuracy, with dimensional tolerance controlled within ±0.04mm;

10-month warranty provided, free replacement of cavity inserts for non-human damage, and lifelong cost-price supply of wearing parts.