Welcome to our blog for insights into different manufacturing processes.
1. Introduction — why the wax pattern matters Investment casting’s ability to deliver near-net shapes, thin walls and high surface finish stems from faithful replication of a wax pattern by
Introduction Precision investment casting is a near-net-shape manufacturing process extensively applied in aerospace, automotive, medical, and high-end industrial equipment sectors. In this process, the wax pattern functions as the geometric
1. Introduction Precision casting, also known as investment casting, is a high-precision manufacturing technology widely used in the production of complex, high-performance components in aerospace, automotive, energy, and other fields.
Surface quality of cast-steel components is governed primarily by two interrelated factors in the moulding phase: mould-cavity cleanliness and the surface condition of the mould. For large castings—where pouring systems
1. Introduction Investment casting (lost-wax / precision casting with ceramic shell systems) is a compelling production route for custom valve bodies when the design calls for complex internal flow paths,
Commercially pure titanium Grade 1 (CP-Ti Grade 1) is the softest and most ductile of the standard commercially pure titanium grades. Its low interstitial impurity levels give it outstanding corrosion
Introduction Die casting imposes very specific constraints: rapid filling, high cooling rates, thin sections, and extreme sensitivity to entrained gases, oxides and intermetallics. Design drivers typically include: thin-wall castability, dimensional
1. Executive summary Micro-Arc Oxidation (MAO) — also known as Plasma Electrolytic Oxidation (PEO) or spark anodizing — is an electrochemical-plasma surface treatment that grows a ceramic-rich oxide layer on
1. Why dimensional accuracy matters Dimensional accuracy is one of the most critical quality attributes of castings, directly influencing assembly precision, functional reliability, fatigue life, and interchangeability. In industries such
Investment casting shell making is not a single activity but a sequence of interdependent subprocesses. Most common shell defects (surface blemishes, sand inclusion, local thinning or piling, blisters, shell flaking,
Executive summary Refractory materials constitute the lion’s share (>90% by dry weight) of an investment-casting shell and therefore govern almost every performance attribute of the shell: surface finish, green and
1. Executive summary — why silica sol matters Silica sol is the binder that turns a packed refractory powder layer into a cohesive, high-fidelity facecoat and backer in modern precision
The topcoat coating is a pivotal link in the investment casting shell-making process, as its performance directly determines the surface finish, detail replication, and defect rate of castings. Unlike backcoat
The slurry used in silica sol shell making, especially the face coat slurry, exerts a decisive influence on the final casting quality. The performance of the face coat slurry directly
Introduction Shell quality is the defining variable in investment casting that determines surface finish, dimensional accuracy, defect incidence and downstream cleaning effort. A high-performance shell must simultaneously satisfy multiple, sometimes
Surface quality of castings is a function of every step that touches the pattern, mold and metal — from die/pattern condition and pattern-material rheology through shell/facecoat preparation, dewaxing and shell
1. Executive summary Conventional (decorative) anodizing and hard (hardcoat) anodizing are both electrochemical conversion processes that produce an aluminum-oxide (Al₂O₃) layer on aluminium alloys. They share the same basic chemistry
1. Executive summary Case hardening creates a thin, very hard surface layer (the “case”) on a tougher, ductile core. It combines surface wear and fatigue resistance with a ductile core
1. Executive Summary EN-GJS-400-15 is a widely used grade of ductile (spheroidal graphite) cast iron defined under the European EN 1563 standard. A balanced combination of moderate tensile strength, high
1. Introduction Water glass investment casting (also known as sodium silicate investment casting) is a precision casting technology that uses water glass as the binder for the shell, combined with
1. Introduction CD3MWCuN (UNS J93380, ASTM A890/A995 Grade 6A) is a high-performance super duplex stainless steel (SDSS) developed in the mid-1980s, specifically engineered to address the corrosion challenges of extreme
Copyright © 2026 LangHe Industry Co., Ltd. All Rights Reserved. 2026
Please fill in your information and we will contact you promptly.
