6 Things to know before buying Durometers Delhi !    1. What are Durometers Delhi and how it works? Durometers Delhi are portable instruments for measuring hardness. It’s a measurement tool. It has a testing procedure for using it. It’s a specialized, self-referencing scale for comparing the hardness of a comparable group of materials. Note: Durometer Delhi Hardness measurements are unitless. This is the main reason comparing hardness between different Durometer hardness scales is not recommended. Though these sorts of charts are widely available, comparing differen...

  Examining Mold Hardness, LOCATION_NAME Strength The control and maintenance of a green sand system is an important part of producing quality sand castings. Many tests are available to determine the critical physical properties of the sand in the system and whether the mixture  is consistent. Sand tests for properties such as moisture and compact ability help control water additions. Tests for methylene blue clay, green strength, and AFS (American Foundry Standards) clay define bond additions. Tests for permeability, AFS grain fineness, and other properties will determine grain sizing and new sand additions. Together, these tests can demonstrate if the sand mix...