LaTeX Forum

\documentclass{article} 

\usepackage{multirow} 
	\usepackage{tikz}
	\usetikzlibrary{calc,trees,positioning,arrows,chains,shapes.geometric,%
		decorations.pathreplacing,decorations.pathmorphing,shapes,%
		matrix,shapes.symbols}
	\tikzset{
		>=stealth',
		punktchain/.style={
			rectangle, 
			rounded corners, 
			draw=black, very thick,
			text width=10em, 
			minimum height=3em, 
			text centered, 
			on chain},
		line/.style={draw, thick, <-},
		element/.style={
			tape,
			top color=white,
			bottom color=blue!50!black!60!,
			minimum width=8em,
			draw=blue!40!black!90, very thick,
			text width=10em, 
			minimum height=3.5em, 
			text centered, 
			on chain},
		every join/.style={->, thick,shorten >=1pt},
		decoration={brace},
		tuborg/.style={decorate},
		tubnode/.style={midway, right=2pt},
	}


\begin{document}
\begin{figure}[htbp] 
   \centering     
   \begin{tikzpicture}[node distance=.9cm, start chain=going below,] 
   \node[punktchain, join] (intro)         {ghgfhsvbcvvc  cvvdhgcghgds dghfghdgfgd hghgdfhgdgfdgf}; 
   \node[punktchain, join] (probf)         {Temperatur Erweiterung \newline zur vollständigen Umwandlung des Materials in die entsprechende Struktur \newline zur Aufstellung der richtigen  Ofenatmosphäre}; %<- wie erzielt man hier die Unterpunkte?
   \node[punktchain, join] (investeringer) {gdjgfjgshfgjsgt sdhgshfghgf vcbvcgdvg}; 
   \node[punktchain, join] (perfekt)       {gdgfhgdhfghg jhdhgjhgfhgjd fdfgjhgdjgdjhg gfhgdfgjdgjl}; 
   \end{tikzpicture} 
   \caption{Ablaufdiagramm } 
   \label{fig:Waermebehandlung} 
\end{figure} 
\end{document}

text width=15em, 

\node[punktchain, join] (probf) {Temperatur Erweiterung \newline zur vollständigen Umwandlung des Materials in die entsprechende Struktur \newline zur Aufstellung der richtigen  Ofenatmosphäre}; %<- wie erzielt man hier die Unterpunkte?

\documentclass[tikz, margin=5pt]{standalone}

\usepackage{selinput} % http://texwelt.de/wissen/fragen/5546
\SelectInputMappings{
	adieresis={ä},
	germandbls={ß}
}
\usepackage[T1]{fontenc}

\usetikzlibrary{
	calc,
	trees,
	positioning,
	arrows,
	chains,
	shapes.geometric,
	decorations.pathreplacing,
	decorations.pathmorphing,
	shapes,
	matrix,
	shapes.symbols
}

\tikzset{
	>=stealth',
	punktchain/.style={
		rectangle, 
		rounded corners, 
		draw=black, very thick,
		text width=15em,
		minimum height=3em, 
		text centered, 
		on chain
	},
	line/.style={draw, thick, <-},
	element/.style={
		tape,
		top color=white,
		bottom color=blue!50!black!60!,
		minimum width=8em,
		draw=blue!40!black!90, very thick,
		text width=10em, 
		minimum height=3.5em, 
		text centered, 
		on chain
	},
	every join/.style={->, thick,shorten >=1pt},
	decoration={brace},
	tuborg/.style={decorate},
	tubnode/.style={midway, right=2pt}
}


\begin{document}
\begin{tikzpicture}[node distance=.9cm, start chain=going below,] 
	\node[punktchain, join] (intro) {ghgfhsvbcvvc  cvvdhgcghgds dghfghdgfgd hghgdfhgdgfdgf}; 
	\node[punktchain, join] (probf) {
		Temperatur Erweiterung
		\begin{itemize}
			\item zur vollständigen Umwandlung des Materials in die entsprechende Struktur
			\item zur Aufstellung der richtigen  Ofenatmosphäre
		\end{itemize}
	};
	\node[punktchain, join] (investeringer) {gdjgfjgshfgjsgt sdhgshfghgf vcbvcgdvg}; 
	\node[punktchain, join] (perfekt)       {gdgfhgdhfghg jhdhgjhgfhgjd fdfgjhgdjgdjhg gfhgdfgjdgjl}; 
\end{tikzpicture} 
\end{document}

\begin{tikzpicture}[node distance=.9cm, start chain=going below, punktchain/.append style={text width=20em}]