Chapter 11, Problem 11.39P

Interpretation Introduction

(a)

Interpretation:

From the Pb-Sn alloy cooling curve, the pouring temperature needs to be determined.

Concept Introduction:

A cooling curve is a line graph representing the transition from a stage of matter, normally, the curve shows the graph in terms of a gas to a solid, or a liquid to a solid. Time is the independent variable on the x-axis and temperature is the dependent variable on the Y-axis In the cooling curve, the amount of energy needed to change the phase is called latent heat. Also, the "cooling rate" at any stage is the slope of the cooling curve.

Interpretation Introduction

(b)

Interpretation:

From the Pb-Sn alloy cooling curve, the superheat needs to be determined.

Concept Introduction:

A cooling curve is a line graph representing the transition from a stage of matter, normally, the curve shows the graph in terms of a gas to a solid, or a liquid to a solid. Time is the independent variable on the x-axis and temperature is the dependent variable on the Y-axis In the cooling curve, the amount of energy needed to change the phase is called latent heat. Also, the "cooling rate" at any stage is the slope of the cooling curve.

Interpretation Introduction

(c)

Interpretation:

From the Pb-Sn alloy cooling curve, The liquidus temperature needs to be determined.

Concept Introduction:

A cooling curve is a line graph representing the transition from a stage of matter, normally, the curve shows the graph in terms of a gas to a solid or a liquid to a solid. Time is the independent variable on the x-axis and temperature is the dependent variable on the Y-axis In the cooling curve, The amount of energy needed to change the phase is called latent heat. and also the "cooling rate" at any stage is the slope of the cooling curve.

Interpretation Introduction

(d)

Interpretation:

From the Pb-Sn alloy cooling curve, the eutectic temperature needs to be determined.

Concept Introduction:

A cooling curve is a line graph representing the transition from a stage of matter, normally, the curve shows the graph in terms of a gas to a solid or a liquid to a solid. Time is the independent variable on the x-axis and temperature is the dependent variable on the Y-axis In the cooling curve, The amount of energy needed to change the phase is called latent heat. and also the "cooling rate" at any stage is the slope of the cooling curve.

Interpretation Introduction

(e)

Interpretation:

From the Pb-Sn alloy cooling curve, the freezing range needs to be determined.

Concept Introduction:

A cooling curve is a line graph representing the transition from a stage of matter, normally, the curve shows the graph in terms of a gas to a solid or a liquid to a solid. Time is the independent variable on the x-axis and temperature is the dependent variable on the Y-axis In the cooling curve, The amount of energy needed to change the phase is called latent heat. and also the "cooling rate" at any stage is the slope of the cooling curve.

Interpretation Introduction

(f)

Interpretation:

From the Pb-Sn alloy cooling curve, The local solidification time needs to be determined.

Concept Introduction:

A cooling curve is a line graph representing the transition from a stage of matter, normally, the curve shows the graph in terms of a gas to a solid or a liquid to a solid. Time is the independent variable on the x-axis and temperature is the dependent variable on the Y-axis In the cooling curve, The amount of energy needed to change the phase is called latent heat. and also the "cooling rate" at any stage is the slope of the cooling curve.

Interpretation Introduction

(g)

Interpretation:

From the Pb-Sn alloy cooling curve, the composition of the alloy needs to be determined.

Concept Introduction:

A cooling curve is a line graph representing the transition from a stage of matter, normally, the curve shows the graph in terms of a gas to a solid or a liquid to a solid. Time is the independent variable on the x-axis and temperature is the dependent variable on the Y-axis In the cooling curve, The amount of energy needed to change the phase is called latent heat. and also the "cooling rate" at any stage is the slope of the cooling curve.